The triangle △ABC is right-angled with a right angle at corner C
and angle β at corner B. Calculate a=|BC|, given that c=|AB|=5, and that tanβ=4/1
a= ?

Answers

Answer 1

The triangle △ABC is right-angled with a right angle at corner C and angle β at corner B and c=|AB|=5, and tanβ=4/1,  a= |BC|= 20 is the required value.

Given that the triangle △ABC is right-angled with a right angle at corner C and angle β at corner B and c=|AB|=5, and tanβ=4/1, we need to find a=|BC|.We know that in a right triangle, the Pythagorean Theorem is a2+b2=c2where a and b are the sides of the right triangle, and c is the hypotenuse.In this case, the hypotenuse is c=|AB|=5, and we need to find a=|BC|.Since we have the value of tanβ=4/1, we can use the formula,tanβ=4/1=a/cSo,a=c * tanβUsing the given values,a = 5 * 4/1a = 20Therefore, a= |BC|= 20 is the required value.

Learn more about triangle :

https://brainly.com/question/2773823

#SPJ11


Related Questions

A cylindrical well is 15 meters deep and has a diameter of 1. 6 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3. 14. )

Answers

To calculate the approximate volume of soil that was dug out to make the well, we can use the formula for the volume of a cylinder: approximately 30.144 cubic meters of soil were dug out to make the well.

Volume = π * radius^2 * height

Given that the diameter of the well is 1.6 meters, the radius can be calculated as half of the diameter:

Radius = 1.6 / 2 = 0.8 meters

The height of the well is given as 15 meters.

Now, we can substitute these values into the volume formula:

Volume = 3.14 * (0.8)^2 * 15

Calculating the value:

Volume = 3.14 * 0.64 * 15

Volume ≈ 30.144 cubic meters

Therefore, approximately 30.144 cubic meters of soil were dug out to make the well.

Please note that this is an approximation as the actual shape of the well may not be a perfect cylinder, but it provides a close estimate of the volume.

Learn more about cylinder here

https://brainly.com/question/23935577

#SPJ11

Write the equation of a function with zeroes at \( x=-3, x=0 \)

Answers

y=x(x+3)
Plugging in 0 for x, you get 0 x (0+3), which is 0
Plugging in -3 for x, you get -3 x (-3+3), which is also 0

Which of the following sets of values has the greatest
variability?
Group of answer choices
A) 1, 4, 7, 9, 11
B) 2, 2, 3, 3, 4
C) 7, 7, 8, 9, 9
D) 2, 3, 5, 7, 8

Answers

A i believe : ) ( : a a a

show your work
What is the slope of the line joining \( (10,9) \) and \( (40,3) ? \) \( \frac{1}{5} \) \( -\frac{1}{5} \) \( -4 \) \( -5 \)

Answers

The slope of the line joining (10,9) and (40,3) is -1/5.

The slope of a line can be calculated using the formula:

slope = (change in y-coordinates) / (change in x-coordinates)

In this case, we have two points: (10,9) and (40,3).

To find the change in y-coordinates, we subtract the y-coordinate of the first point from the y-coordinate of the second point:

change in y-coordinates = 3 - 9 = -6

To find the change in x-coordinates, we subtract the x-coordinate of the first point from the x-coordinate of the second point:

change in x-coordinates = 40 - 10 = 30

Now, we can substitute these values into the slope formula:

slope = -6 / 30 = -1/5

Therefore, the slope of the line joining (10,9) and (40,3) is -1/5.

Know more about slope here:

https://brainly.com/question/3605446

#SPJ11








Solve and find the value of \( X \) : \[ 2 /(3-x)=5 \] [enter your answer with 3 decimals]

Answers

The value of x in the equation 2/(3-x) = 5 is x = -1.333 by solving multiplying both sides by the denominator to eliminate it and then simplifying the resulting expression to isolate the variable x.

To find the value of x, we can start by multiplying both sides of the equation by (3-x) to eliminate the denominator. This gives us 2 = 5(3-x).

Next, we can distribute the 5 to obtain 2 = 15 - 5x.

To isolate the variable x, we can subtract 15 from both sides of the equation, which yields -13 = -5x.

Dividing both sides by -5 gives us x = -13/-5, which simplifies to x = -2.6.

Therefore, the value of x that satisfies the equation 2/(3-x) = 5 is x = -2.6.

In this equation, the main steps involved multiplying both sides by the denominator to eliminate it and then simplifying the resulting expression to isolate the variable x. The final solution for x is -2.6.

Learn more about solving equations here:

https://brainly.com/question/14410653

#SPJ4

The value of [tex]\(X\)[/tex] in the equation [tex]\(\frac{2}{3-x}=5\)[/tex] is 2.6.

To solve the equation [tex]\(\frac{2}{3-x}=5\)[/tex] and find the value of [tex]\(X\)[/tex], we can follow these steps:

1: Cross-multiply to eliminate the fraction.

Multiply 5 with the denominator [tex]\(3-x\)[/tex]:

[tex]\(5(3-x) = 2\)[/tex]

Simplifying, we get:

[tex]\(15 - 5x = 2\)[/tex]

2: Solve for [tex]\(X\)[/tex] by isolating it on one side of the equation.

To do this, we can subtract 15 from both sides of the equation:

[tex]\(15 - 5x - 15 = 2 - 15\)[/tex]

Simplifying further:

[tex]\(-5x = -13\)[/tex]


3: Divide both sides of the equation by -5 to solve for [tex]\(X\)[/tex]:

[tex]\(\frac{-5x}{-5} = \frac{-13}{-5}\)[/tex]

Simplifying:

[tex]\(X = \frac{-13}{-5}\)[/tex]

4: Evaluate the division to find the decimal value of[tex]\(X\)[/tex]:

[tex]\(X = 2.6\)[/tex]

Therefore, the value of[tex]\(X\)[/tex]in the equation [tex]\(\frac{2}{3-x}=5\)[/tex] is 2.6.

Learn more about fraction from this link:

https://brainly.com/question/28372533

#SPJ11

I really need help on this​

Answers

Answer:

Open side up: 3/50 because it happened 3 times out of the 50 times he tossed it

Closed side up: 7/50

Landing side: 40/50 = 4/5

Step-by-step explanation:

hope this helps

vWhich is an equation of the degree 3 polynomial function with real coefficients having zeros (roots ) located at x=2 with multiplicity 1 and x=-6 with multiplicity 1? The function also has a y-intercept located at (0,-36).

Answers

The equation of the degree 3 polynomial function with real coefficients having zeros located at x = 2 with multiplicity 1, and x = -6 with multiplicity 1, and also having a y-intercept located at (0, -36) is f(x) = a(x - 2)(x + 6)(x - 1), where a is some constant.

Let f(x) be a degree 3 polynomial function with real coefficients. It is required to find an equation of the function with zeros at x = 2 and x = -6. It is also given that the function has a y-intercept at (0, -36). Let's start with the factored form of the function:

f(x) = a(x - r₁)(x - r₂)(x - r₃),

where a is a constant,

r₁, r₂, and r₃ are the roots of the polynomial.

The multiplicity of the root refers to how many times it appears in the factorization of the polynomial function. Therefore, the degree 3 polynomial function with real coefficients having zeros located at x = 2 with multiplicity 1 and x = -6 with multiplicity 1 can be represented as follows:

f(x) = a(x - 2)(x + 6)(x - r₃)

The multiplicity of the remaining root is 1, so it is distinct. Substituting the y-intercept, (0, -36), we obtain:

f(0) = a(0 - 2)(0 + 6)(0 - r₃) = -36-12r₃ = -36r₃ = 3r₃ = 3

Therefore, the function can be written as: f(x) = a(x - 2)(x + 6)(x - 1)

To know more about polynomial function, refer here:

https://brainly.com/question/11298461

#SPJ11

rewrite the following radical expression in rational exponent form.
(underroot x)5

Answers

The given radical expression is (√x)^5. To rewrite it in rational exponent form, we need to express the square root (√) as a fractional exponent.

The square root (√) of x can be written as x^(1/2).

To raise x^(1/2) to the power of 5, we can multiply the exponents: (x^(1/2))^5 = x^(5/2).

Therefore, the radical expression (√x)^5 can be rewritten as x^(5/2) in rational exponent form.

In summary, (√x)^5 is equivalent to x^(5/2) in rational exponent form.

To Know more about radical expression Visit:

https://brainly.com/question/12887524

#SPJ11

The probiem refers to ripht triangle ABC with C=90°. Use a calculator to find sinA,cosA,5 in B, and cosB. Round your answers to the nearest hundredth b = 8.82, c = 9.66. sinA= cosA= sinθ= cosθ=

Answers

sinA ≈ 0.408 and cosA ≈ 0.912 are the values we can calculate based on the given lengths of sides b and c.

To find the values of sinA, cosA, sinθ, and cosθ in the right triangle ABC with C = 90°, we need to use the given lengths of the sides.

Given:

b = 8.82

c = 9.66

Using the Pythagorean theorem, we can find side a:

a² = c² - b²

a² = 9.66² - 8.82²

a² = 93.3156 - 77.7124

a² = 15.6032

a ≈ √15.6032

a ≈ 3.95

Now, we can calculate the trigonometric functions:

sinA = a / c

sinA = 3.95 / 9.66 ≈ 0.408

cosA = b / c

cosA = 8.82 / 9.66 ≈ 0.912

To find sinθ and cosθ, we need to find the values of sinθ and cosθ in the right triangle ABC. However, the values of θ (angle B in this case) are not given, so we cannot determine sinθ and cosθ without more information.

Therefore, sinA ≈ 0.408 and cosA ≈ 0.912 are the values we can calculate based on the given lengths of sides b and c.

To learn more about triangle

https://brainly.com/question/32067900

#SPJ11

What is the value -134+53

Answers

Answer:

To find -134 + 53, add the ones place (4+3=7) and the tens place (5+3=8), giving you -81.

Answer: -81.

Answer:

-81

Step-by-step explanation:

You subtract the absolute values and take the sign of the larger absolute value.

Absolute value is the distance from zero.  This will be a positive number

134 - 53 = 81

The sign will be negative because the sign of the higher absolute value number is negative.  134 has a larger absolute value than 53 and it is negative, so our answer is negative.

Helping in the name of Jesus.

In Chapter 2, we discuss a number of Measures useful to interpreting data, such as Measures of Location, Measures of Variability and Measures of Association between Two Variables. Describe how you might use one or more of these measures to help interpret data generated in a setting (work, school, etc.) from your experience, and how such the measures and interpretation might a) illustrate an important aspect of the of the underlying activity and/or b) indicate an improved way of completing the activity, Measuring or interpreting the data.

Answers

In various settings, such as work or school, measures of location, measures of variability, and measures of association can provide valuable insights and aid in interpreting data.

Let's consider an example from a work setting where employee performance data is collected

Measures of location, such as the mean or median, can illustrate an important aspect of employee performance. By calculating the mean performance score, we can identify the average level of performance across the organization. This measure helps us understand the central tendency of the data and provides a benchmark to assess individual employee performance against the average. If the mean performance score is low, it indicates the need for improvement in overall performance.

Measures of variability, such as the standard deviation, can indicate the spread or dispersion of performance scores. A high standard deviation suggests a wide range of performance levels among employees, indicating a lack of consistency. This insight prompts organizations to investigate the underlying factors contributing to the variability and identify areas for improvement in training, resources, or performance management processes.

Furthermore, measures of association, such as correlation coefficients, can help identify relationships between variables. For example, we can explore the correlation between employee performance scores and factors like years of experience, education level, or training hours. Understanding these associations can guide decision-making processes, such as designing targeted training programs for employees who exhibit a lower correlation between training hours and performance.

By applying these measures and interpreting the data, organizations can gain valuable insights into employee performance. This understanding can lead to improved decision-making, such as identifying areas for performance improvement, optimizing resource allocation, and implementing targeted interventions to enhance overall productivity and success within the work setting.

Learn more about variability here:

https://brainly.com/question/15078630

#SPJ11

Use a calculator to approximate cos(−4,4207) cos(−4.4207)≈ (Round to four decimal places as needed.)

Answers

Using a calculator, cos(-4.4207) is approximately 0.9874. (Rounded to four decimal places.)

To approximate the value of cos(-4.4207) using a calculator, follow these steps:

Turn on your calculator and make sure it is set to the appropriate angle mode (either degrees or radians).

Enter the value -4.4207 into the calculator.

Press the cosine button (usually labeled "cos" or "cosine").

Read the result displayed on the calculator screen.

Approximating the value using a calculator, we find that cos(-4.4207) is approximately 0.9874.

Remember to round the result to four decimal places as indicated in the problem statement.

The approximate value, rounded to four decimal places, is used to provide a close estimation of the cosine of -4.4207.

To learn more about “cosine” refer to the https://brainly.com/question/23720007

#SPJ11

Describe what fraction of the circumference of a full circle is spanned by an angle with the given measure. (Enter your answer in exact form.) θ=9 radians

Answers

The fraction of the circumference of a full circle spanned by an angle with a measure of θ = 9 radians is 9/2π.

To determine the fraction of the circumference spanned by an angle, we need to compare the angle to a full circle, which has a circumference of 2π radians. In this case, the given angle measure is θ = 9 radians.

We know that a full circle measures 2π radians, so the fraction of the circumference spanned by the given angle can be calculated by dividing the measure of the angle (9 radians) by the measure of a full circle (2π radians):

Fraction = θ / (2π) = 9 / (2π) = 9/2π.

Therefore, the fraction of the circumference of a full circle spanned by an angle with a measure of 9 radians is 9/2π.

To know more about radians and their relationship to the circumference of a circle, refer here:

https://brainly.com/question/27025090#
#SPJ11

the angle measured up from the horizon is called the

Answers

Answer:

angle of elevation

Step-by-step explanation:

an angle measured up from the horizon is an angle of elevation

an angle measured down from the horizon is an angle of depression

Solve the inequality. Suggestion: A calculator may be useful for approximating key numbers. ((1+x/1-x) - (1-x/1+x) < -3

Answers

The solution set for the given inequality (1+x)/(1-x) - (1-x)/(1+x) < -3 is x ∈ (-1, 0) ∪ (1, ∞).

To solve the given inequality, we shall use the concept of numerator and denominator rationalization.

Inequality given: (1 + x) / (1 - x) - (1 - x) / (1 + x) < -3

Let's cross multiply the denominator of each fraction.

((1 + x)(1 + x) - (1 - x)(1 - x)) / (1 - x)(1 + x) < -3

Simplifying, we get:

((1 + x)² - (1 - x)²) / (1 - x)(1 + x) < -3

⇒ ([1² + 2x + x²] - [1² - 2x + x²]) / (1² - x²) < -3

⇒ 4x / (1 - x²) < -3

Multiplying both sides with (1 - x²), we get:

4x < -3(1 - x²) ⇒ 4x < -3 + 3x²

We can also write this as a quadratic equation by bringing all the terms to one side:

3x² + 4x - 3 > 0

Now, we can solve the quadratic equation by using either factoring method or quadratic formula. However, since we just need to check for inequality, we can use the sign of quadratic polynomial’s leading coefficient (which is positive) and the zeros/roots of the polynomial (which will be negative).

Hence, the inequality holds true for all x in the interval (-1, 0) and (1, ∞). Thus, the solution set for the given inequality is x ∈ (-1, 0) ∪ (1, ∞).

To know more about inequality, refer here:

https://brainly.com/question/27989101

#SPJ11

Solve the equation. ∣9x+1∣−10=−5 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution set is . (Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed.) B. The solution is all real numbers. C. The solution is the empty set.

Answers

The solution set is {4/9, -2/3}. Thus, the correct answer is option A.

The equation is given as:

|9x + 1| - 10 = -5

Add 10 to both sides of the equation to isolate the absolute value term:

|9x + 1| - 10 + 10 = -5 + 10

|9x + 1| = 5

Split the equation into two cases:

Case 1: 9x + 1 ≥ 0

Case 2: 9x + 1 < 0

Case 1: 9x + 1 ≥ 0

When 9x + 1 ≥ 0, the absolute value |9x + 1| remains unchanged.

|9x + 1| = 5 becomes 9x + 1 = 5.

Solving for x in Case 1:

9x + 1 = 5

9x = 5 - 1

9x = 4

x = 4/9

Case 2: 9x + 1 < 0

When 9x + 1 < 0, the absolute value |9x + 1| becomes -(9x + 1).

|9x + 1| = 5 becomes -(9x + 1) = 5.

Solving for x in Case 2:

-(9x + 1) = 5

-9x - 1 = 5

-9x = 5 + 1

-9x = 6

x = 6/(-9)

x = -2/3

Thus, the equation |9x + 1| - 10 = -5 has two solutions:

x = 4/9 and x = -2/3.

Learn more about the absolute value here:

brainly.com/question/1301718

#SPJ4

The solution set is x=4/9, -2/3.

To solve the equation ∣9x+1∣−10=−5, we can follow these steps:

1: Add 10 to both sides of the equation:
∣9x+1∣−10+10=−5+10
∣9x+1∣=5

2: Split the equation into two cases, one with the positive absolute value and one with the negative absolute value:
Case 1: 9x+1=5
Case 2: 9x+1=-5

3: Solve each case separately:
Case 1: 9x+1=5
Subtract 1 from both sides:
9x+1-1=5-1
9x=4
Divide both sides by 9:
9x/9=4/9
x=4/9

Case 2: 9x+1=-5
Subtract 1 from both sides:
9x+1-1=-5-1
9x=-6
Divide both sides by 9:
9x/9=-6/9
x=-2/3

Therefore, the solution set is x=4/9, -2/3.

Learn more about absolute value from this link:

https://brainly.com/question/17364177

#SPJ11

Let v be any vector in E². We define T, the translation by v, by Tvxxv. Show that Ty Tw= To+w, for any choice of v and w in E².

Answers

Given, v be any vector in E². We define T, the translation by v, by Tv = x + v, where x is any point in E². We need to show that Ty Tw = To + w, for any choice of v and w in E².

Here, Ty and Tw are translations of y and w, respectively. Hence, we have,Ty = y + v and Tw = w + v. Therefore, Ty Tw = (y + v) + (w + v) = y + w + 2v. Now, To + w represents the translation of o by w, i.e., To + w = o + w.Hence, to show that Ty Tw = To + w, we need to show that y + w + 2v = o + w.Let's consider the following cases:-

Case 1: If y = o, then Ty = o + v, and therefore Ty Tw = (o + v) + (w + v) = o + (2v + w). Now, if we choose v = (-1/2)w, we get Ty Tw = o + (2v + w) = o, and To + w = o + w = o.Thus, Ty Tw = To + w for this choice of v and w.

Case 2: If y ≠ o, then let z = y - o. Then, Ty = z + v + o and Tw = z + w + o. Now,Ty Tw = (z + v + o) + (z + w + o) = 2o + z + v + w. By choosing v = -w, we have Ty Tw = 2o + z, and To + w = o + w. Therefore, Ty Tw ≠ To + w in this case.Hence, we have shown that Ty Tw = To + w for some choice of v and w in E², but not for all choices of v and w in E².

To learn more about "Vector" visit: https://brainly.com/question/25705666

#SPJ11

Find the future value one year from now of a $7,000 investment at a 3% annual compound interest rate. Also calculate the future value if the investment is made for 2 years. 2. Find the future value of $10,000 investment now after five years of the annual interest rate is 8% a. What would be the future value if the interest rate is a simple interest rate b. What would be the future value if the interest rate is a compound interest rate 3. Determine the future value if $5,000 is invested in each of the following situation:( just need to answer one in a,b,c. thank you ) a. 5% for 10 years b. 7% for 7 years c. 9% for 4 years 4. You are planning to invest $2,500 today for 3 years at a nominal interest rate of 9% with annual compounding a. What would be the future value of your investment b. Now assume that inflation is expected to be 3% / years, over the same 3 years period. What would be the investment

Answers

The future value of a $7,000 investment at a 3% annual compound interest rate after one year is $7,210. The future value after two years would be $7,429.30.

The future value of an investment with compound interest can be calculated using the formula:

Future Value = Principal Amount * (1 + Interest Rate)^Number of Periods

For the given investment of $7,000, the interest rate is 3% and the number of periods is one year. Substituting these values into the formula, we get:

Future Value = $7,000 * (1 + 0.03)^1 = $7,210

To calculate the future value after two years, we use the same formula with the number of periods as two:

Future Value = $7,000 * (1 + 0.03)^2 = $7,429.30

For a $10,000 investment, after five years with an annual interest rate of 8%, the future value would be $14,693.28.

a. If the interest rate is a simple interest rate, the future value would be calculated using the formula:

Future Value = Principal Amount * (1 + Interest Rate * Number of Periods)

Substituting the given values into the formula, we get:

Future Value = $10,000 * (1 + 0.08 * 5) = $14,000

b. If the interest rate is a compound interest rate, we use the same formula as in question 1:

Future Value = $10,000 * (1 + 0.08)^5 = $14,693.28

For a $5,000 investment, the future value can be calculated as follows:

a. At 5% for 10 years: Future Value = $5,000 * (1 + 0.05)^10

b. At 7% for 7 years: Future Value = $5,000 * (1 + 0.07)^7

c. At 9% for 4 years: Future Value = $5,000 * (1 + 0.09)^4

Choose one of the three options (a, b, or c) to calculate the specific future value for the $5,000 investment.

a. The future value of a $2,500 investment after 3 years at a nominal interest rate of 9% with annual compounding can be calculated using the formula:

Future Value = Principal Amount * (1 + Interest Rate)^Number of Periods

Substituting the given values into the formula, we get:

Future Value = $2,500 * (1 + 0.09)^3 = $3,386.46

b. Considering an expected inflation rate of 3% per year, the future value of the investment would be adjusted for inflation. We need to calculate the real rate of return by subtracting the inflation rate from the nominal interest rate:

Real Rate of Return = Nominal Interest Rate - Inflation Rate

Real Rate of Return = 9% - 3% = 6%

Using the real rate of return, we can calculate the future value adjusted for inflation using the same formula as before:

Future Value Adjusted for Inflation = Principal Amount * (1 + Real Rate of Return)^Number of Periods

Future Value Adjusted for Inflation = $2,500 * (1 + 0.06)^3 = $3,077.59

Therefore, after considering inflation, the future value of the investment would be $3,077.59.

Learn more about investment here:

brainly.com/question/32701404

#SPJ11

ln(x³−2x²−x+2)−ln(x+1)−ln(x−2)=ln(2)

Answers

The equation ln(x³ - 2x² - x + 2) - ln(x + 1) - ln(x - 2) = ln(2) does not have a real solution.

To solve the equation ln(x³ - 2x² - x + 2) - ln(x + 1) - ln(x - 2) = ln(2), we can use logarithmic properties to simplify the equation.

First, we can combine the logarithms on the left-hand side using the quotient rule of logarithms:

ln((x³ - 2x² - x + 2)/(x + 1)(x - 2)) = ln(2)

Since the natural logarithm is a one-to-one function, we can equate the expressions inside the logarithms:

(x³ - 2x² - x + 2)/(x + 1)(x - 2) = 2

Next, we can clear the denominator by multiplying both sides of the equation by (x + 1)(x - 2):

(x³ - 2x² - x + 2) = 2(x + 1)(x - 2)

Expanding the right side, we have:

x³ - 2x² - x + 2 = 2(x² - x - 2)

Simplifying further:

x³ - 2x² - x + 2 = 2x² - 2x - 4

Bringing all the terms to one side of the equation:

x³ - 4x² + x - 6 = 0

Now, we have a cubic equation. To solve it, we can use various methods such as factoring, synthetic division, or numerical methods.

By observing the equation, we can see that x = 2 is a root. Using synthetic division, we can divide the polynomial by (x - 2) to find the remaining quadratic equation:

(x³ - 4x² + x - 6)/(x - 2) = (x² - 2x + 3)

Now, we can solve the quadratic equation (x² - 2x + 3) = 0 using factoring, quadratic formula, or completing the square. However, upon inspection, we can see that the quadratic equation does not have real roots.

Therefore, the original equation ln(x³ - 2x² - x + 2) - ln(x + 1) - ln(x - 2) = ln(2) does not have a real solution.

learn more about "equation ":- https://brainly.com/question/29174899

#SPJ11

Determine if the following sentence is true or false: The following vectors are orthogonal: [1,−2],[2,3] True or False

Answers

The vectors [1, -2] and [2, 3] are not orthogonal since their dot product is -4, which is not zero. Therefore, the statement is false.

To determine if two vectors are orthogonal, we need to calculate their dot product. Given the vectors [1, -2] and [2, 3], we can calculate the dot product as follows:

[1, -2] · [2, 3] = (1 * 2) + (-2 * 3) = 2 - 6 = -4.

Since the dot product is not zero (-4 ≠ 0), the vectors [1, -2] and [2, 3] are not orthogonal.

Orthogonal vectors have a dot product of zero, which indicates that the vectors are perpendicular to each other.

In this case, the dot product of -4 indicates that the vectors [1, -2] and [2, 3] are not perpendicular to each other. They do not form a right angle and do not align in a way that would make them orthogonal.

Therefore, the statement "The following vectors are orthogonal: [1, -2], [2, 3]" is false. The vectors [1, -2] and [2, 3] are not orthogonal.

To learn more about orthogonal visit:

https://brainly.com/question/30772550

#SPJ11

Find the area of a sector of a circle having radius r and central angle θ. r=10.0mi,θ=120°

Answers

The area of the sector of the circle with a radius of 10.0 miles and a central angle of 120° is approximately 104.72 square miles.

The area of a sector of a circle can be calculated using the formula:

Area = (θ/360°) * π * r²

Given that the radius (r) is 10.0 miles and the central angle (θ) is 120°, we can substitute these values into the formula to find the area:

Area = (120°/360°) * π * (10.0 mi)²

     = (1/3) * π * (100.0 mi²)

     ≈ 104.72 mi²

Therefore, the area of the sector is approximately 104.72 square miles.

To know more about the area of a sector of a circle, refer here:

https://brainly.com/question/29055300#

#SPJ11

What is the addition and subtraction rule with significant figures? Please give some specific examples.

Answers

When adding or subtracting numbers with significant figures, the result should be rounded to the least precise decimal place of the measurements involved.

How do you round the result when adding or subtracting significant figures?

When performing addition or subtraction operations with numbers that have different levels of precision, it is important to ensure that the result is reported with the appropriate number of significant figures.

The rule states that the result should be rounded to the least precise decimal place among the measurements involved in the calculation.

For example, consider the addition of 53.5 and 46.5. Both numbers have one decimal place, so the sum should also be reported with one decimal place.

Adding the numbers gives us 100, but when applying the rule, we round the result to 100.0 to reflect the precision of the original measurements.

Similarly, if we subtracted 46.5 from 53.5, the result would still have one decimal place: 7.0.

Learn more about significant figures

brainly.com/question/29153641

#SPJ11

what’s the answer ??

Answers

Answer:

3132

Step-by-step explanation:

2.2% of 3500 is 77 which leaves you with 3423 after one year. At this rate you can take 2.2% of 3423. using this formula five times you reach a final answer of 3132.

3500

-77

3423

-75.306

3347.694

-73.649268

3274.044732

-72.028984104

3202.0157479

-70.4443464538

3131.57140145

and rounding up to a whole leaves you with 3132

22. The table and graph below show the number of minutes
left on your cell phone plan over the course of the month.
What is the prediction equation?
Day
Minutes
1
4
7
14
20
26
90
84
55
41
20
10

Answers

The prediction equation is  determined as y = -3.9x  + 100.

What is the prediction equation?

The prediction equation is calculated as follows;

The formula for the general equation of a linear graph is given as;

y = mx + c

where;

m is the slope of the graphc is the y - intercept of the graph

From the line of the best fit drawn in the graph, the slope of the line is calculated as follows;

m = Δy / Δx

let's choose the following points;

(x₁, y₁) = (4, 84)

(x₂, y₂) = (14, 45)

m = (45 - 84) / (14 - 4)

m = -39/10

m = -3.9

From the graph, the y - intercept = 100

The prediction equation is determined as;

y = -3.9x  + 100

Learn more about prediction equation here: https://brainly.com/question/18464401

#SPJ1

A population of bacteria is treated with an antibiotic. It is estimated that 5,000 live bacteria existed in the sample before treatment. After each day of treatment, 40% of the sample remains alive. Which best describes the graph of the function that represents the number of live bacteria after x days of treatment?

f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0
f(x) = 5000(0.6)x, with a vertical asymptote of x = 0
f(x) = 5000(1.4)x, with a horizontal asymptote of y = 0
f(x) = 5000(1.6)x, with a vertical asymptote of x = 0

Answers

The best description of the graph of the function that represents the number of live bacteria after x days of treatment is

f(x) = 5000(0.4)x, with a horizontal asymptote of y = 0.

The function f(x) = 5000(0.4)x represents exponential decay, where the number of live bacteria decreases by 60% (100% - 40%) each day.

The initial population of 5,000 bacteria is multiplied by 0.4 (40%) for each day of treatment.

As x increases, the exponent x causes the value of 0.4 to decrease exponentially, resulting in a diminishing population of bacteria.

The horizontal asymptote of y = 0 indicates that as the number of days of treatment approaches infinity, the number of live bacteria approaches zero. In other words, the antibiotic treatment effectively eradicates the bacteria population over time.

This is consistent with the idea that the antibiotic is reducing the number of live bacteria by 40% each day, leading to an exponential decay of the population.

In conclusion, the function f(x) = 5000(0.4)x with a horizontal asymptote of y = 0 best represents the graph of the number of live bacteria after x days of treatment.

for such more questions on function

https://brainly.com/question/29631554

#SPJ8

Use the function w(x)=5−13cos(14x+π) to find the following. Give exact answers. (a) amplitude: (b) period: (c) minimum value: (d) vertical intercept: (enter just the w value) (e) horizontal shift:

Answers

The horizontal shift of the function w(x) is -\frac{\pi}{14}.Hence, the amplitude, period, minimum value, vertical intercept, and horizontal shift of the function w(x)=5-13\cos(14x+\pi) are 13, \frac{\pi}{7}, 18, 18, and -\frac{\pi}{14}, respectively.

The function given is w(x)=5-13\cos(14x+\pi), therefore, we need to find out the amplitude, period, minimum value, vertical intercept, and horizontal shift of the function.

Part (a) Amplitude:The amplitude of a trigonometric function is the distance between the maximum and minimum values of the function. The amplitude of w(x) can be determined as follows:\[\begin{aligned}&A=|a|=|−13|=13\end{aligned}\]Therefore, the amplitude of the given function is 13.

Part (b) Period:The period of the function is given as 2\pi/b, where b is the coefficient of x in the argument of cos. Thus, the period of the function w(x) is calculated as follows:\[\begin{aligned}&\text{Period},\ T=\frac{2\pi}{b}=\frac{2\pi}{14}=\frac{\pi}{7}\end{aligned}\]Therefore, the period of the given function is \frac{\pi}{7}.

Part (c) Minimum value:Since -1\leq \cos \theta \leq 1 for any angle \theta, the smallest value of \cos(14x+\pi) is -1, and the minimum value of w(x) is obtained when cos(14x+\pi)=-1.\[\begin{aligned}&w(x)=5-13\cos(14x+\pi)=5-13(-1)=18\end{aligned}\]Therefore, the minimum value of the function w(x) is 18.

Part (d) Vertical intercept:The vertical intercept is obtained by setting x=0 in the function w(x). Thus, the vertical intercept of the function is calculated as follows:\[\begin{aligned}&w(x)=5-13\cos(14x+\pi)=5-13\cos(\pi)\\&w(0)=5-13(-1)=18\end{aligned}\]Therefore, the vertical intercept of the function w(x) is 18.

Part (e) Horizontal shift:The function w(x) is of the form w(x)=a\cos(bx+c)+d. If the coefficient of  in the argument of \cos is bx+c, then the function has a horizontal shift of -c/b. For the function w(x)=5-13\cos(14x+\pi), we have b=14 and c=\pi. Thus, the horizontal shift of w(x) is given by:\[\begin{aligned}&\text{Horizontal shift}=-\frac{c}{b}=-\frac{\pi}{14}\end{aligned}\]Therefore, the horizontal shift of the function w(x) is -\frac{\pi}{14}.Hence, the amplitude, period, minimum value, vertical intercept, and horizontal shift of the function w(x)=5-13\cos(14x+\pi) are 13, \frac{\pi}{7}, 18, 18, and -\frac{\pi}{14}, respectively.

Learn more about function :

https://brainly.com/question/29633660

#SPJ11

It is sometimes necessary to take powers or roots to solve chemistry problems. Take powers and roots as needed on your calculator to complete the following:
a=4.96
2

b
3
=0.399
c=4.00
0.665

d
0.905
=3.83


a=
b=
c=
d=

Answers

The values to the given expressions are as follows:

a = 4.96^2 = 24.6016

b = 0.399^(1/3) = 0.703

c = (4.00^0.665) = 2.363

d = 0.905^(3.83) = 1.279

To find the values of the given expressions, we can use the calculator to perform the necessary calculations. Let's go through each calculation step by step:

a) To calculate a, we need to raise 4.96 to the power of 2. Using a calculator, we find that 4.96^2 equals 24.6016.

b) For b, we are required to find the cube root of 0.399. Using the calculator, we determine that the cube root of 0.399 is approximately 0.703.

c) To solve for c, we need to raise 4.00 to the power of 0.665. Utilizing the calculator, we find that 4.00^0.665 is equal to approximately 2.363.

d) Lastly, to calculate d, we need to raise 0.905 to the power of 3.83. Using the calculator, we find that 0.905^3.83 equals approximately 1.279.

To know more about calculating powers and roots in chemistry problems, refer here:

https://brainly.com/question/29744465#

#SPJ11

How many possible outcomes are expressed in the probability 14/
25?

Answers

If the probability is expressed as a fraction, then the total number of possible outcomes is equal to the denominator of the fraction. In this case, the denominator is 25. So there are 25 possible outcomes in total.

When we express a probability as a fraction, the denominator of the fraction represents the total number of possible outcomes that could occur in the event or experiment being considered. For example, if we were rolling a standard six-sided die and we wanted to know the probability of rolling a 3, the denominator of the fraction would be 6 because there are six possible outcomes (1, 2, 3, 4, 5, 6).

In the case of the original question where the probability was expressed as 14/25, the denominator is 25. This means that there are 25 possible outcomes in the event or experiment being considered.

However, without knowing more about the event or experiment, we can't determine how many of those 25 possible outcomes correspond to the specific event or situation being considered. For example, if we were flipping a coin and interested in the probability of getting heads, then there would be two possible outcomes (heads or tails) even though the denominator would still be 25 if we were considering 25 flips of the coin. So, the denominator simply tells us the total number of possible outcomes, but we need additional information to understand how many outcomes are relevant to the specific probability question being asked.

Learn more about  probability  from

https://brainly.com/question/30390037

#SPJ11

Homework 4: A car travels 22 mi per gallon of gasoline. And How many kilometers per liter will it go?

Answers

Step-by-step explanation:

22 mi / gal  *  1/3.7854 L/gal  *  1.6093 km /mi = 9.353 km / L

Balloons are filled to capacity outdoors where the temperature is 25∘F. They are brought indoors where the temperature is 70∘F. Explain what will happen to the balloons as they warm up indoors.

Answers

When balloons filled to capacity outdoors at a temperature of 25∘F are brought indoors where the temperature is 70∘F, they will expand and increase in size as they warm up. The increase in temperature causes the air molecules inside the balloons to gain energy and move more rapidly.

When the balloons are brought indoors where the temperature is 70∘F, the air inside the balloons will begin to warm up. As the temperature increases, the air molecules inside the balloons gain energy and start to move more rapidly. This increased movement of the air molecules causes them to collide with the walls of the balloons more frequently and with greater force.

The collision of the air molecules with the walls of the balloons creates pressure inside the balloons. As the pressure increases, the balloons will start to expand and stretch. This expansion occurs because the rubber material of the balloons is flexible and can accommodate the increased volume of air.

As the balloons continue to warm up, the expansion will become more noticeable. The balloons will increase in size and become tauter. This happens because the air molecules inside the balloons are now occupying a larger space due to the increase in temperature. The rubber material of the balloons stretches to accommodate the greater volume of air.

It's important to note that if the temperature difference is significant, the expanding balloons may eventually reach their limits and could potentially burst if they are unable to withstand the internal pressure. Therefore, it's crucial to consider the temperature conditions when filling balloons to avoid overinflation.

Learn more about Balloon expansion

brainly.com/question/14773644

#SPJ11

Other Questions
the oval track below is formed by a straight section What are the building blocks of carbohydrates, nucleic acids, proteins, and lipids? Calculate the mass of water vapour present in a room of volume 400 m3 that contains air at 27C on a day when the relative humidity is 60%. Hint: Treat the water vapour as a perfect gas and find water saturation at 27C. Calculate the energy (in joules) and wavelength (in nanometers) of light emitted for each of the following electronic transitions ( n initial n final) in the hydrogen atom. Please refer to section 3.4 in your textbook for more guidance and additional equations. Remember that wavelength is calculated in meters and you will need to convert your answers to nanometers. a) n=2n=1 b) n=3n=1 c) n=4n=1 Etransition =2.181018 J(nf21ni21) d) n=5n=1 e) n=6n=1 Ephoton =Etransition f) n=3n=2 g) n=4n=2 Ephoton =hv h) n=5n=2 i) n=6n=2 j) n=7n=2 Isotopes are atoms that have the same number of proton and different number of neutrons. The common notation is as follows, where A is the mass number, Z is the atomic number, and X is the atomic symbol. Suppose an element with three stable isotopes has 82 protons. The separate isotopes contain 124, 125, and 126 neutrons. Identify the element and write symbols for the isotopes. Farmer Joe uses Roundup Ready soybeans and sprays his crop with Roundup in order to control weeds. Farmer Jane lives next to Farmer Joe, and Jane is using conventional soybeans and organic practices to earn a premium for organic soybeans for Whole Foods edamame. But, Joe's Roundup drifts onto Jane's crop and potentially contaminates the product, thereby forcing Jane to lose her premium. If the cost to Jane for lost revenue is greater than the cost to Joe for not using Roundup, we would expect:Jane could negotiate with Joe to curtail his use by helping cover his increased cost, thereby reducing the externality.There is no possible solution for Jane and Joe.Jane should simply quit growing organic soybeans to avoid the problem.Jane could not negotiate with Joe to help pay his increased costs and so the externality will remain present. The rock that has undergone the greatest extent of metamorphic change is called _____ The expanded accounting equation shows the four subsets of equity: Revenues, Expenses, stockholder investments and dividends. Using the dropdown buttons, indicate the impact each transaction has on to utilizing more motor units for stronger muscle contractions is called using the margin pricing model and the product cost method,calculate the selling price of one vanilla latte. Information:vanilla late product cost R15, Administrative and salesexpenses(per vanilla which of the following principles apply to the patient in traction? Find all solutions of the equation. (Enter all answers including repetitions. Enter your answers as a comma-separated list.) x^4 + 2x^3 17x^2 4x + 30 = 0x =A polynomial f(x) with real coefficients and leading coefficient 1 has the given zeros and degree. Express f(x) as a product of linear and/or quadratic polynomials with real coefficients that are irreducible over . 4, 3 4i; degree 3f(x) = what unconventional action did the texas legislature take in 2003? Consider a hot gas duct similar to the one of Example 2.3. The length of the duct is 30 m. Hot gases enter the duct at a rate of 2500 kg/h. The temperature of the gas decreases along the duct because of heat loss to the ambient. If the gas enters at 400C, at what temperature does it leave? Assume that the inside wall temperature is the same as that of the gas at any location. The outside wall temperature remains constant at 65C. The thermal resistance of the steel shell is negligible. The average specific heat of the gas is 1040 J/kgC. [Hint: Consider a small element of length dx of the duct over which the gas temperature changes by dT because of heat loss. If m is the gas flow rate, R the thermal resistance per metre length of the duct, T1 the inlet temperature (400C),T2 the outlet temperature (to be calculated), and l the duct length (30 m), then mcpdT={(TTo)/R}dx. On integration, )h {(T1To)/(T2To)}=1/(mcpR).]267c where would you expect to find metamorphic rocks forming? According to the following reaction, how many moles of mercury will be formed upon the complete reaction of 28.3 grams of mercury(II) oxide? mercury(II) oxide (s) mercury (1)+ oxygen (g) _______ moles mercury in its dealings with european traders, the ming dynasty government Susan suffers BI of $125,000 when involved in an accident with a negligent motorist. Susan's limits are $100/300/50 with a $100 UM/UIM limit. The negligent motorist has limits of $30/60/25. What will Susan collect under her UIM coverage? which term refers to the fixed amount in a salesperson's compensation? which of the following characteristics is a disadvantage of in-house hosting?