Points A, B, C , and D are collinear, with point B between points A and C and point C between points B and D . Cumplete the statement.


A B+_____=A D

Answers

Answer 1

The missing term in the statement is "BC."

In the given scenario, we have points A, B, C, and D that are collinear, with B between A and C and C between B and D. To complete the statement "AB + _____ = AD," we need to determine the missing term.

Since points A, B, C, and D are collinear, the distance from A to D can be calculated by considering the distances from A to B and from B to D. By the Segment Addition Postulate, the sum of the lengths of AB and BC will give us the length of AD:

AB + BC = AD

Therefore, the missing term in the statement is "BC."

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Related Questions

4x+5y=−4
O Direct variation
k=__
O Not direct variation
4y=20x
O Direct variation
k=__
O Not direct variation

Answers

The [tex]k= 4x + 5y = -4[/tex]  Not direct variation and [tex]4y = 20x[/tex] is direct variation with k = 5 of the given equation.

To determine whether the given equations represent direct variation or not, we need to check if they are in the form[tex]y = kx[/tex], where k is a constant.

[tex]4x + 5y = -4[/tex]

This equation is not in the form [tex]y = kx[/tex]. We can rearrange it to isolate y:

[tex]5y = -4 - 4x\\y = (-4 - 4x)/5[/tex]

Since this equation is not in the form [tex]y = kx[/tex] it does not represent direct variation. There is no specific constant k.

[tex]4y = 20x[/tex]

This equation can be rewritten as[tex]y = (20/4)x[/tex] or [tex]y = 5x[/tex].

Here, the equation is in the form [tex]y = kx,[/tex] where k = 5. Therefore, this equation represents direct variation with a constant of k = 5.

To summarize:

[tex]4x + 5y = -4[/tex]--> Not direct variation

[tex]4y = 20x[/tex]--> Direct variation with k = 5

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In the complex number plane, what geometric figure describes the complex numbers with absolute value 10 ?

a. What does the absolute value of a complex number represent?

Answers

The absolute value of a complex number represents the distance of the complex number from the origin (0,0) in the complex plane.

In the complex number plane, the complex numbers with an absolute value of 10 form a circle centered at the origin. The absolute value (or modulus) of a complex number represents its distance from the origin in the complex plane. It is calculated as the square root of the sum of the squares of the real and imaginary parts of the complex number.

For a complex number z = a + bi, where a is the real part and b is the imaginary part, the absolute value is given by:

[tex]|z| = √(a^2 + b^2)[/tex]

The absolute value of a complex number represents its magnitude or modulus, which is the distance from the origin to the point representing the complex number in the complex plane.

In the case of complex numbers with an absolute value of 10, all the complex numbers lie on a circle centered at the origin with a radius of 10 units. This circle represents the geometric figure that describes the complex numbers with an absolute value of 10 in the complex number plane.

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Read each question. Then write the letter of the correct answer on your paper. A and B are mutually exclusive events. Pa.= 1/3 and Pb.= 1/2 . What is P(A or B). ? a. 1/6 b. 2/3 c. 5/6 d. 1

Answers

Answer:

Step-by-step explanation:

To calculate the probability of the union of mutually exclusive events A and B (P(A or B)), we can use the formula:

P(A or B) = P(A) + P(B)

However, since events A and B are mutually exclusive, meaning they cannot occur simultaneously, the probability of their union is simply the sum of their individual probabilities.

Given that P(A) = 1/3 and P(B) = 1/2, we can calculate the probability of their union:

P(A or B) = P(A) + P(B)

         = 1/3 + 1/2

         = 2/6 + 3/6

         = 5/6

Therefore, the correct answer is c. 5/6.

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If you invest $900 in a bank where it will earn 8 percent compounded annually, how much will it be worth at the end of seven years? Complete the steps below using cell references to given data or previous calculations. In some cases, a simple cell reference is all you need. To copy/paste a formula across a row or down a column, an absolute cell reference or a mixed cell reference may be preferred. If a specific Excel function is to be used, the directions will specify the use of that function. Do not type in numerical data into a cell or function. Instead, make a reference to the cell in which the data is found. Make your computations only in the green cells highlighted below. In all cases, unless otherwise directed, use the earliest appearance of the data in your formulas, usually the Given Data section. Given Data: Annual Interest Rate 8% Number of years 7 Money available for investing S900.00 Value of investment after 7 years

Answers

The investment will be worth approximately $1,546.45 at the end of 7 years. To calculate the value of the investment after 7 years, we can use the formula for compound interest:

Value = Principal * (1 + interest rate)^time

Given Data:

Principal (P) = $900

Annual Interest Rate (r) = 8% or 0.08

Number of years (t) = 7

Substituting the values into the formula, we have:

Value = $900 * (1 + 0.08)^7

Calculating the exponent:

(1 + 0.08)^7 = 1.08^7 ≈ 1.718279

Now we can calculate the value of the investment:

Value = $900 * 1.718279 ≈ $1,546.45

Therefore, the investment will be worth approximately $1,546.45 at the end of 7 years.

In this calculation, we used the compound interest formula, which takes into account the initial principal, the annual interest rate, and the number of compounding periods (in this case, 7 years). The interest is compounded annually, meaning that at the end of each year, the interest earned is added to the principal for the next year's calculation.

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Write an equation for a line perpendicular to y=−5x+5 and passing through the point (10,6).
y=

Answers

The equation of the line perpendicular to y = -5x + 5 and passing through the point (10, 6) is: y = ([tex]\frac{1}{5}[/tex])x + 4.

To find the equation of a line perpendicular to y = -5x + 5 and passing through the point (10, 6), we first need to determine the slope of the perpendicular line.

The given line has a slope of -5. Perpendicular lines have slopes that are negative reciprocals of each other. So, the slope of the perpendicular line will be [tex]\frac{1}{5}[/tex].

Now, using the point-slope form of a linear equation, we can write the equation of the line:

y - y₁ = m(x - x₁)

Using the point (10, 6) and the slope 1/5:

y - 6 = ([tex]\frac{1}{5}[/tex])(x - 10)

Simplifying the equation:

y - 6 = ([tex]\frac{1}{5}[/tex])x - 2

y = ([tex]\frac{1}{5}[/tex])x + 4

Therefore, the equation of the line perpendicular to y = -5x + 5 and passing through the point (10, 6) is y = ([tex]\frac{1}{5}[/tex])x + 4.

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Determine whether each set of numbers can be the measures of the sides of a triangle. If so, classify the triangle as acute, obtuse, or right. Justify your answer. 75. 13,30,35

Answers

The triangle with side lengths 13, 30, and 35 is an obtuse triangle.

Let's consider the set of numbers 13, 30, and 35.

For a triangle to exist, the sum of the lengths of any two sides must be greater than the length of the third side.

Checking the conditions:

1. 13 + 30 = 43, which is greater than 35. Condition satisfied.

2. 13 + 35 = 48, which is greater than 30. Condition satisfied.

3. 30 + 35 = 65, which is greater than 13. Condition satisfied.

All the conditions are satisfied, so these numbers can be the measures of the sides of a triangle.

To classify the triangle, we can determine the type based on the angles. We can use the Pythagorean theorem to determine if the triangle is right-angled.

In this case, we have:

13² + 30² = 169 + 900 = 1069

35² = 1225

Since 1069 is not equal to 1225, the triangle is not right-angled.

To determine if it is acute or obtuse, we can examine the cosine rule:

c²= a²+ b²- 2ab * cos(C)

where a, b, and c are the sides of the triangle, and C is the angle opposite to side c.

Calculating the value using the given lengths:

35²= 30²+ 13² - 2(13)(30) * cos(C)

1225 = 169 + 900 - 780 * cos(C)

1225 = 1069 - 780 * cos(C)

780 * cos(C) = 1069 - 1225

780 * cos(C) = -156

Since -156 is greater than 780, the cosine value is negative, indicating an obtuse angle.

Therefore, the triangle with side lengths 13, 30, and 35 is an obtuse triangle.

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Find f

(x). f(x)=2e
x
+5x−lnx f

(x)=

Answers

To find the derivative of the function f(x) = 2e^x + 5x - ln(x), we can apply the rules of differentiation.  here, f'(x) =[tex]2e^x + 5 - 1/x.[/tex]

The derivative of each term can be calculated separately using the following rules:

d/dx(e^x) = e^x (derivative of e^x is e^x itself)

d/dx(5x) = 5 (derivative of 5x with respect to x is 5)

d/dx(ln(x)) = 1/x (derivative of ln(x) with respect to x is 1/x)

Therefore, the derivative of f(x) is:

f'(x) = [tex]d/dx(2e^x) + d/dx(5x) - d/dx(ln(x))[/tex]

     =[tex]2e^x + 5 - 1/x[/tex]

So, f'(x) =[tex]2e^x + 5 - 1/x.[/tex].

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Consider the function f(x)=10x-x². What type of function is f? Group of answer choices a linear function. an exponential function. a quadratic function. a logarithmic function.

Answers

The function f(x) = 10x - x² is a quadratic function.

A quadratic function is a polynomial function of degree 2, which means the highest power of the variable is 2. In the given function, the variable x is raised to the power of 1 in the term 10x, and it is raised to the power of 2 in the term -x². This indicates that the function is a quadratic function.

The general form of a quadratic function is f(x) = ax² + bx + c, where a, b, and c are constants. In the given function, a = -1, b = 10, and c = 0 (since there is no constant term). So, the function f(x) = 10x - x² fits the form of a quadratic function.

Quadratic functions are known for having a graph in the shape of a parabola. In this case, the parabola opens downward because the coefficient of the x² term is negative (-1). The graph of the function will have a vertex at the maximum point, which in this case is (5, 25).

Therefore, the function f(x) = 10x - x² is indeed a quadratic function.

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f) Roslyn's Jewelers sells watches for $50 each. During the next month, they estimate that they will sell 15,25,35, or 45 watches with respective probabilities of 0.35,0.25,0.20, and ... (figure it out). They can only buy watches in lots of ten from their dealer. 10,20,30,40, and 50 watches cost $40,39,37,36, and 34 per watch respectively. Every month, Roslyn's has a clearance sale and will get rid of any unsold watches for $24 (watches are only in style for a month and so they have to buy the latest model each month). Any customer that comes in during the month to buy a watch, but is unable to, costs Roslyn's $6 in lost goodwill. i) If the pay-offs are the cost of jewelers, set-up the payoff matrix for this problem. ii) If the pay-offs are the profit, set-up the pay-off matrix for this problem.

Answers

To set up the payoff matrix for this problem considering the cost of the jewelers, we need to calculate the cost for each combination of the number of watches sold and bought.

Let's denote the number of watches sold as S and the number of watches bought as B. The payoff matrix will have rows representing the possible values of S (15, 25, 35, 45) and columns representing the possible values of B (10, 20, 30, 40, 50).

The cost for each combination can be calculated as follows: If S = B, the cost is 50S since they can sell all the watches at the regular price.

If S > B, the cost is 50B + 6(S - B) since they sell B watches at the regular price and have S - B customers leaving with a goodwill cost of $6 each.

If S < B, the cost is 50S + 24(B - S) since they sell S watches at the regular price and have B - S unsold watches that they need to get rid of at $24 each.

(ii) To set up the payoff matrix considering the profit, we need to subtract the cost from the revenue for each combination. The revenue is calculated as the number of watches sold multiplied by the selling price of $50. The payoff matrix will have the same structure as in part (i), but the values will represent profits instead of costs

Please note that without the specified probability for selling 45 watches, it is not possible to provide specific numerical values for the payoff matrix. However, the structure and calculation method remain the same as described above.

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Solve each equation using the Quadratic Formula. 2 x²+5 x=7 .

Answers

The solutions of a quadratic equation are,

⇒ x = 1 and x = - 7/2

We have to give that,

A quadratic equation is,

⇒ 2x² + 5x = 7

Now, By using the Quadratic formula, we get;

⇒ 2x² + 5x = 7

⇒ 2x² + 5x - 7 = 0

⇒ 2x² + 7x - 2x - 7 = 0

⇒ x (2x + 7) - 1 (2x + 7) = 0

⇒ (x - 1) (2x + 7) = 0

This gives two solutions,

⇒ x - 1 = 0

⇒ x = 1

⇒ 2x + 7 = 0

⇒ 2x = - 7

⇒ x = - 7/2

Therefore, The solutions are,

⇒ x = 1 and x = - 7/2

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What is the minimal r1 so that the current i6 across r6 will be no more than 25 ma? (vs=10v, r2=20, r3=10, r4=20, r5=10, and r6=10)

Answers

The minimum value of r1 to limit the current i6 across r6 to no more than 25 mA is 10V - 21Ω.

Let's calculate the minimum value of r1 to limit the current i6 across r6 to no more than 25 mA.

vs = 10V
r2 = 20Ω
r3 = 10Ω
r4 = 20Ω
r5 = 10Ω
r6 = 10Ω
i6 ≤ 25 mA

To find the current i6, we can use Ohm's Law and the series and parallel resistor formulas:

i6 = (10V - vr1 - vr2 - vr3) / (r4 + r5 + r6)

Substituting the given resistor values:

i6 = (10V - vr1 - 20Ω - 10Ω) / (20Ω + 10Ω + 10Ω)
i6 = (10V - vr1 - 30Ω) / 40Ω
i6 = (10V - vr1 - 30Ω) / 40Ω

To limit i6 to 25 mA (0.025 A), we can set up the inequality:

(10V - vr1 - 30Ω) / 40Ω ≤ 0.025 A

Let's solve the inequality to find the minimum value of r1.

(10V - vr1 - 30Ω) / 40Ω ≤ 0.025 A

To simplify the inequality, we can multiply both sides by 40Ω to eliminate the denominator:

10V - vr1 - 30Ω ≤ 0.025 A * 40Ω

Simplifying further:

10V - vr1 - 30Ω ≤ 1Ω

Now, let's isolate vr1 by moving the constants to the other side:

- vr1 ≤ 1Ω - 10V + 30Ω
- vr1 ≤ 21Ω - 10V

To maintain the inequality, we need to flip the inequality sign when multiplying or dividing by a negative value. Since r1 is positive, we can multiply both sides by -1:

vr1 ≥ -21Ω + 10V

Simplifying:

vr1 ≥ 10V - 21Ω

Therefore, the minimum value of r1 to ensure that the current i6 across r6 is no more than 25 mA is 10V - 21Ω.

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Solve the system of equations by using the addition method. 5x2 3y2=95 x2 5y2=129

Answers

The solutions to the system of equations are:

(x, y) = (2√26, 5), (-2√26, 5), (2√26, -5), (-2√26, -5)

To solve the system of equations using the addition method, we need to eliminate one of the variables by adding or subtracting the equations. Let's manipulate the equations to make the coefficients of one variable the same.

Given system of equations:

(1) 5x^2 + 3y^2 = 95

(2) x^2 + 5y^2 = 129

To eliminate the variable x, we can multiply equation (2) by 5 and equation (1) by 1:

5(x^2 + 5y^2) = 5(129) [Multiplying equation (2) by 5]

5x^2 + 25y^2 = 645 [Distributive property]

1(5x^2 + 3y^2) = 1(95) [Multiplying equation (1) by 1]

5x^2 + 3y^2 = 95

Now, we can subtract equation (2) from equation (1):

(5x^2 + 3y^2) - (5x^2 + 25y^2) = 95 - 645

Simplifying, we get:

-22y^2 = -550

Dividing both sides by -22, we have:

y^2 = 25

Taking the square root of both sides, we get:

y = ±5

Now, substitute the value of y back into one of the original equations, let's use equation (2):

x^2 + 5(±5)^2 = 129

x^2 + 25 = 129

x^2 = 104

Taking the square root of both sides, we get:

x = ±√104

Simplifying further, we have:

x = ±2√26

Therefore, the solutions to the system of equations are:

(x, y) = (2√26, 5), (-2√26, 5), (2√26, -5), (-2√26, -5)

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The ratio of the lengths of the diagonals of a quadrilateral is 1: 1 . The ratio of the lengths of the consecutive sides of the quadrilateral is 3: 4: 3: 5 . Classify the quadrilateral. Explain.

Answers

Based on the given ratios of diagonal and side lengths, the quadrilateral can be classified as a Rhombus.

To classify the quadrilateral based on the given information, we can analyze the properties of quadrilaterals and use the provided ratios.

The ratio of the lengths of the diagonals is 1:1. This indicates that the diagonals are congruent, meaning they have the same length. Diagonals that are congruent in a quadrilateral suggest that the shape may be a parallelogram or a rectangle.

The ratio of the lengths of the consecutive sides is 3:4:3:5. Let's assign these ratios to the respective sides of the quadrilateral:

Let side lengths be:

Side 1 = 3x

Side 2 = 4x

Side 3 = 3x

Side 4 = 5x

Since diagonals divide a quadrilateral into two triangles, we can consider each triangle formed by the consecutive sides of the quadrilateral.

Triangle 1: Side 1, Side 2, and the diagonal

Triangle 2: Side 3, Side 4, and the diagonal

In Triangle 1, the sides have lengths 3x, 4x, and x (diagonal).

In Triangle 2, the sides have lengths 3x, 5x, and x (diagonal).

Since the diagonals in both triangles are congruent (given as 1:1), we can equate the lengths of the diagonals in each triangle.

From Triangle 1: x = x

From Triangle 2: x = x

This implies that both triangles are isosceles triangles, where two sides (the consecutive sides) are equal in length.

Considering the properties of a quadrilateral with congruent diagonals and isosceles triangles formed by consecutive sides, the most likely classification for this quadrilateral is a Rhombus.

A rhombus is a special type of parallelogram where all sides are congruent. It also has diagonals that bisect each other at right angles.

In summary, based on the given ratios of diagonal and side lengths, the quadrilateral can be classified as a Rhombus.

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Draw a valid conclusion from the given statements, if possible. Then state whether your conclusion was drawn using the Law of Detachment or the Law of Syllogism. If no valid conclusion can be drawn, write no valid conclusion and explain your reasoning.


Determine whether the stated conclusion is valid based on the given information. If not, write invalid. Explain.

Given: If an earthquake measures a 7.0 or higher on the Richter scale, then it is considered a major earthquake that could cause serious damage. The 1906 San Francisco earthquake measured 8.0 on the Richter scale.

Conclusion: The 1906 San Francisco earthquake was a major earthquake that caused serious damage.

Answers

The conclusion "The 1906 San Francisco earthquake was a major earthquake that caused serious damage." is valid. The 1906 San Francisco earthquake had a Richter scale rating of 8.0, which is higher than the 7.0 threshold for significant earthquake damage-causing force.

The given statement establishes a conditional relationship between an earthquake being regarded as a big earthquake that may cause significant damage and its Richter scale magnitude being at least 7.0.

The second claim, that the 1906 San Francisco earthquake reached 8.0 on the Richter scale, gives detailed details on the earthquake. We can infer that the 1906 San Francisco earthquake belongs to the category of earthquakes that are deemed major and capable of causing significant damage because its magnitude, at 8.0, is higher than the threshold of 7.0 established in the given statement.

As a result, the Law of Detachment is used to derive a conclusion, which is sound. When a conditional statement is satisfied and the hypothesis (antecedent) is true, we can reach a valid conclusion thanks to the Law of Detachment. The stated statement's condition is met in this instance by the earthquake measuring 8.0 on the Richter scale.

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A horizontal line has points A , E, D. A line extends vertically from point E to point C and forms a right angle at C E D. A line extends up and to the left from point E to point B.
Which statement is true about the given information?

∠CED measures 45°.
∠CED measures 180°.
∠AEC measures 90°.
∠AEC measures 45°

Answers

Answer:

C. ∠AEC measures 90°

Step-by-step explanation:

The given information describes a horizontal line with points A, E, and D. A vertical line extends from point E to point C and forms a right angle at CED. A line extends up and to the left from point E to point B. The statement that is true about the given information is that ∠AEC measures 90° 1. Therefore, the correct answer is C. ∠AEC measures 90°.

Answer:

AEC measures 90°

Step-by-step explanation:

just did the review

Which of the following three data sets is Cross sectional? a. BCAD data and links b. Demographic data c. Code cases

Answers

Among the three options provided, the cross-sectional data set is the demographic data. Correct option is B).

Cross-sectional data refers to a type of data that captures information about different individuals, entities, or units at a specific point in time. It provides a snapshot of a population or sample at a particular moment, allowing for comparisons and analysis of various characteristics or variables. In the case of demographic data, it typically includes information about individuals' age, gender, education level, income, and other demographic attributes. This data set does not capture changes or trends over time but rather provides a snapshot of the population's characteristics at a specific time.

On the other hand, the BCAD data and links could refer to data related to building codes, regulations, and their corresponding references, while code cases may refer to specific instances or examples of code violations or compliance. These data sets may be specific to certain incidents or cases and do not necessarily capture information about a population or sample at a particular point in time, making them less likely to be considered cross-sectional data.

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ΔADC is translated along the vector <-2,3> and then reflected in the x -axis. What are the coordinates of A' after the transformation?

A. (1,-4)

B. (1,4)

C. (-1,4)

D. (-1,-4)

Answers

The coordinates of A' after the transformation are (-1, -4).

To find the coordinates of point A' after the described transformation, we need to perform two operations: translation and reflection.

1. Translation along the vector <-2, 3>:

To translate a point along a vector, we add the corresponding components of the vector to the coordinates of the point.

If the coordinates of point A are (x, y), the translated coordinates of A' will be (x - 2, y + 3).

2. Reflection in the x-axis:

To reflect a point in the x-axis, we negate the y-coordinate while keeping the x-coordinate the same.

Given that we have translated the point A by <-2, 3>, the new coordinates of A' after the translation are (x - 2, y + 3). To reflect A' in the x-axis, the final coordinates of A' will be (x - 2, -(y + 3)).

Comparing the given answer choices:

A. (1, -4)

B. (1, 4)

C. (-1, 4)

D. (-1, -4)

We can see that the correct answer is D. (-1, -4), as it matches the calculated coordinates of A' after the translation and reflection.

Therefore, the coordinates of A' after the transformation are (-1, -4).

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A storage company needs to design a new storage box that has twice the volume of its largest box. Its largest box is 5 ft long, 4ft wide, and 3ft high. The new box must be formed by increasing each dimension by the same amount. Find the increase in each dimension.


a. How can you write the dimensions of the new storage box as polynomial expressions?

Answers

The dimensions of the new box as follows:

Length: 5 ft + x

Width: 4 ft + x

Height: 3 ft + x

These polynomial expressions represent the dimensions of the new storage box, where x represents the increase in each dimension.

Here, we have,

To find the increase in each dimension for the new storage box, we can start by expressing the dimensions of the largest box as polynomial expressions.

The largest box has dimensions 5 ft long, 4 ft wide, and 3 ft high. We can write these dimensions as polynomial expressions as follows:

Length: 5 ft = x (where x is the variable representing the increase in length)

Width: 4 ft = x (where x is the variable representing the increase in width)

Height: 3 ft = x (where x is the variable representing the increase in height)

Since the new box must have twice the volume of the largest box, we can express the dimensions of the new box as follows:

Length: 5 ft + x

Width: 4 ft + x

Height: 3 ft + x

These polynomial expressions represent the dimensions of the new storage box, where x represents the increase in each dimension.

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Write a cosine function for each description.amplitude 3 , period 2π

Answers

The cosine function with an amplitude of 3 and a period of 2π can be expressed as f(x) = 3cos(x).

In this equation, the cosine function is represented by cos(x), where x is the independent variable representing the angle. By multiplying the cosine function by 3, we introduce an amplitude of 3 to the function. The amplitude determines the maximum distance from the average value of the function. In this case, the function will oscillate between -3 and 3.

The period of the cosine function is given by 2π. The period represents the length of one complete cycle of the function. In this case, the function will complete one full cycle over an interval of 2π. This means that as x increases from 0 to 2π, the function will go through one complete oscillation, starting from its maximum value, decreasing to its minimum value, and returning back to the maximum value. The function will repeat this pattern for subsequent intervals of 2π.

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The loudness measured in decibels (dB) is defined by loudness =10 log I₀, where I is the intensity and I₀=10⁻¹² W/m² .The human threshold for pain is 120 dB. Instant perforation of the eardrum occurs at 160dB.


(a) Find the intensity of the sound with the top up and with the top down.

Answers

To find the intensity of the sound with the top up and with the top down, we need additional information such as the specific decibel level or the change in decibel level caused by the top being up or down. Please provide the decibel level or the change in decibel level.


The formula for loudness in decibels (dB) is given by loudness = 10 log(I/I₀), where I is the intensity and I₀ is the reference intensity of 10⁻¹² W/m².

To determine the intensity of the sound with the top up or down, we need the decibel level or the change in decibel level caused by the top position. Without that information, we cannot calculate the exact intensity values.

However, we do have some reference points for loudness. The human threshold for pain is typically considered to be 120 dB, and instant perforation of the eardrum occurs at 160 dB. These thresholds can help us understand the range of intensities associated with different decibel levels.

If you provide the decibel level or the change in decibel level caused by the top being up or down, we can use the formula to calculate the corresponding intensity.

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A pilot drops a bomb from a plane flying horizontally. where will the plane be located when the bomb hits the ground? group of answer choices

Answers

Neglecting air resistance, when the bomb hits the ground the horizontal location of the plane will be over the bomb.

Neglecting air resistance, when the bomb is dropped from a plane flying horizontally at a constant speed, the bomb will have both horizontal and vertical velocities. The horizontal velocity of the bomb will be the same as the plane's velocity since the bomb inherits the initial velocity of the plane. As a result, the bomb will continue moving horizontally with the same speed as the plane.

Since the plane and the bomb are moving together horizontally at the same speed, when the bomb hits the ground, the plane will be directly above the bomb.

Therefore, the horizontal location of the plane will be over the bomb.

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The complete question is:

A pilot drops a bomb from a plane flying horizontally at a constant speed. Neglecting air resistance, when the bomb hits the ground the horizontal location of the plane will

Answer

depend of the speed of the plane when the bomb was released.

depend of the mass of the bomb when it was released.

be behind the bomb.

be over the bomb.

be in front of the bom

If ac=150,BC=x,AB=2x what is the value of x

Answers

Answer:x=50

Step-by-step explanation:



Solve each equation using the quadratic formula.

x(x-3)=4

Answers

The equation x(x - 3) = 4 has two solutions: x = 4 and x = -1, which can be found using the quadratic formula x = (-b ± √(b² - 4ac)) / (2a).

Let's first rewrite the equation in standard quadratic form: x² - 3x - 4 = 0. Here, a = 1, b = -3, and c = -4.

Using the quadratic formula, we can substitute these values into the formula and solve for x:

x = (-(-3) ± √((-3)² - 4(1)(-4))) / (2(1))

 = (3 ± √(9 + 16)) / 2

 = (3 ± √25) / 2.

Now, evaluating the square root, we have: x = (3 ± 5) / 2.

This gives us two possible solutions:

1. When x = (3 + 5) / 2 = 8 / 2 = 4.

2. When x = (3 - 5) / 2 = -2 / 2 = -1.

Therefore, the equation x(x - 3) = 4 has two solutions: x = 4 and x = -1.

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Draw a top view, front view, and side view of the house.

Answers

The sketch of the views of the house are added as an attachment

How to draw the views of the house

From the question, we have the following parameters that can be used in our computation:

The prism (see attachment)

Using the figure as a guide, we understand that:

The front elevation is a rectangle of 2m by 0.5mWhile the side elevation is a rectangle merged with a trapezoid

Next, we draw the elevations or views (see attachment)

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Emily rented a truck to move her belongings from her old apartment to her new apartment. The company charges a flat rental fee of $21.50 with an additional $0.50 for each mile driven. If the total cost was at most $121, how far did Emily drive to move her belongings to her new apartment?
A.
at least 199 miles
B.
at most 199 miles
C.
at least 60.5 miles
D.
at most 242 miles

Answers

To solve this problem, we can use the given information to set up an equation. Let's assume Emily drove x miles.

The cost of renting the truck is $21.50, and she is charged an additional $0.50 for each mile driven. So, the total cost can be expressed as:

Total cost = $21.50 + ($0.50 * x)

According to the question, the total cost was at most $121. Therefore, we can write the inequality:

$21.50 + ($0.50 * x) ≤ $121

Now, let's solve for x:

$0.50 * x ≤ $121 - $21.50
$0.50 * x ≤ $99.50
x ≤ $99.50 / $0.50
x ≤ 199

So, Emily drove at most 199 miles. Therefore, the correct answer is B.

Answer:

B.

at most 199 miles

Step-by-step explanation:

To find how many miles Emily drove, we need to use the equation

Total cost = flat fee + miles driven * cost per mile

Substituting in the numbers

121 ≥ 21.50 + m * .5

121≥ 21.50 +.50m

Subtract 21.50 from each side.

99.50 ≥ .5m

Divide each side by .5

199 ≥m

Emily drove less than or equal to 199 miles

Find the perimeter of rectangle QRST. QT = 10. Round answer to the nearest tenth.

Answers

The perimeter of the given rectangle above which is QRST would be = 134.

How to calculate the perimeter of the given rectangle above?

Given that QT = 10 The Pythagorean formula should be used to calculate TS.

That is :

c² = a² + b²

where;

c = TS = ?

a=QS = 36√2

b = QT = 10

c² = (36√2)²+10²

= 2601+100

c =√2701

= 52

But QR = RS

using the sine rule;

a= QR=?

A= 45°

c= 36√2

C= 90°

a/sin45°=36√2/sin90°

That is;

a/sin45° = 51/1

a/0.707106781 = 51

a = 51×0.707106781

a= QR = RS = 36

The perimeter of the rectangle = 10+52+36+36 = 134

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Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts, follows a normal distribution, with a mean of 4.5 million visitors per day and a standard deviation of 820,000 visitors per day.
a. What is the probability that the web site has fewer than 5 million visitors in a single day?
b. What is the probability that the web site has 3 million or more visitors in a single day?
c. What is the probability that the web site has between 3 million and 4 million visitors in a single day?
d. Assume that 85% of the time, the Smiley’s People web servers can handle the daily web traffic volume without purchasing additional server capacity. What is the amount of web traffic that will require Smiley’s People to purchase additional server capacity?

Answers

a. The probability  is approximately 0.706.

b. The probability is approximately 0.932.

c. The probability is approximately 0.226.

d. The web traffic exceeds approximately 5.31 million visitors per day.

a. To calculate the probability that the website has fewer than 5 million visitors, we need to find the z-score corresponding to 5 million and use the standard normal distribution table. The z-score is calculated as (5,000,000 - 4,500,000) / 820,000 = 0.6098. Looking up this z-score in the table, we find the probability to be approximately 0.706.

b. To find the probability that the website has 3 million or more visitors, we calculate the z-score for 3 million as (3,000,000 - 4,500,000) / 820,000 = -1.8293. Using the standard normal distribution table, we find the probability to be approximately 0.932 (1 - 0.932 = 0.068 for fewer than 3 million visitors).

c. To calculate the probability that the website has between 3 million and 4 million visitors, we calculate the z-scores for both values: (3,000,000 - 4,500,000) / 820,000 = -1.8293 and (4,000,000 - 4,500,000) / 820,000 = -0.6098. Using the standard normal distribution table, we find the probability between these z-scores to be approximately 0.226.

d. To determine the web traffic amount that requires additional server capacity, we need to find the z-score corresponding to the 85th percentile, which is given by 1 - 0.85 = 0.15. Looking up this z-score in the standard normal distribution table, we find it to be approximately 1.0364.

Solving for the traffic level, we have (1.0364 * 820,000) + 4,500,000 = approximately 5,310,328 visitors per day. Therefore, Smiley's People would need to purchase additional server capacity when the web traffic exceeds approximately 5.31 million visitors per day.

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If θ is in Quadrant I and sinθ=3/5 , what is an exact value of sin 2θ ?

(F) 9/25 (G) 24/25 (H) 6/5 (I) 73.7

Answers

An exact value of sin2θ is 24/25. Therefore, the correct answer is option (G).

The sin of an angle in Quadrant I is positive, so sinθ = 3/5. To find the exact value of sin 2θ, we can use the double-angle formula sin 2θ = 2(sinθ)(cosθ). Since θ is in Quadrant I, cosθ = 4/5. Plugging those values into our double-angle formula, we have:

sin 2θ = 2(3/5)(4/5)

= 24/25

Therefore, the correct answer is option (G).

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Write an equation for each translation. x²+y²=49 ; right 3 units and up 2 units

Answers

The translated equation of x² + y² = 49, moving right 3 units and up 2 units, is (x - 3)² + (y - 2)² = 49.



To translate the equation right 3 units and up 2 units,

we subtract 3 from the x-coordinate and 2 from the y-coordinate.

This is reflected in the translated equation by replacing x with (x - 3) and y with (y - 2). The equation (x - 3)² + (y - 2)² = 49 represents a circle with.

its center shifted 3 units to the right and 2 units up from the original circle x² + y² = 49.

The radius remains the same, as indicated by the constant value of 49.

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State the assumption(s) under the classical linear regression model giving rise to a biased standard error of the coefficient estimates when violated.

Answers

The assumption under the classical linear regression model that, when violated, can lead to biased standard errors of coefficient estimates is the assumption of no heteroscedasticity.

The assumption under the classical linear regression model that, when violated, can lead to a biased standard error of the coefficient estimates is:

1. No heteroscedasticity: The error terms have constant variance across all levels of the independent variables. If this assumption is violated and there is heteroscedasticity, the standard errors of the coefficient estimates may be biased, leading to incorrect inference about their significance.

It's worth noting that violation of other assumptions, such as linearity, independence, normality of errors, and absence of multicollinearity, can affect the validity of coefficient estimates and inference in different ways but may not necessarily introduce biased standard errors.

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