Solve 2^x = 3^x +1. What are the exact and approximate solutions

Answers

Answer 1

The equation's close approximation [tex]2^x = 3^{(x+1)[/tex]is x ≈ -2.713.

To solve the equation [tex]2^x = 3^{(x+1)[/tex]  for x, we can use logarithms.

If we take the logarithm of both sides of the equation (base 2), we get:

[tex]log2(2^x) = log2(3^{(x+1)})[/tex]

Using the properties of logarithms, we can simplify this equation as:

[tex]x = (x+1) \times log2(3)[/tex]

Expanding further:

[tex]x = x log2(3) + log2(3)[/tex]

Now, we can isolate the x terms on one side of the equation:

[tex]x - x \times log2(3) = log2(3)[/tex]

Factoring out x from the left side:

x(1 - log2(3)) = log2(3)

Dividing both sides by (1 - log2(3)), we find:

x = log2(3) / (1 - log2(3))

This gives us the exact solution for x.

We can change log2(3) = 1.585 into the equation to get an approximation of the answer:

x ≈ 1.585 / (1 - 1.585)

Simplifying further:

x ≈ 1.585 / (-0.585)

x ≈ -2.713

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Related Questions

What is the equation of function in slope-intercept form?
3x+y=1
y-1=-3x
y-4=-3(x+2)
y= -3/2x+1

Answers

Answer:

y= -3/2x+1

Step-by-step explanation:

slope intercept is y = mx + b form

so the answer is y= -3/2x+1

writing a function model for the graph, step by step please !!

Answers

The function which is modeled by the graph is y=2x+4.

We have to find the function in the given graph.

The line is passing through the points (-1, 2) and (0, 4).

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Slope = 4-2/0+1

=2

Now let us find the y intercept.

4=2(0)+b

b=4

So the function is y=2x+4.

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5. Find AB, BC, and AC.
Part I: The length of line segment AC is 8x-9. Use the figure below to find the value of x. Show
your work. (1 point)
3x + 1
B
4x-5
C

Answers

To find the value of x, we can use the fact that the sum of the lengths of the line segments in a triangle is equal to the total length of the triangle.

In this case, we have:

AC = 8x - 9

AB = 3x + 1

BC = 4x - 5

The sum of the lengths of the line segments AB, BC, and AC should be equal to the total length of the triangle ABC. Therefore, we can set up the equation:

AB + BC + AC = total length of triangle ABC

(3x + 1) + (4x - 5) + (8x - 9) = total length of triangle ABC

Simplifying the equation, we get:

15x - 13 = total length of triangle ABC

Since we don't have any additional information about the triangle, we can't determine the exact length of the total triangle. Therefore, we cannot find the exact value of x using the given figure.

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The figure below depicts a company's customer analysis based on gender and age group.

What percentage of age-groups has more male customers than female customers?

- 37.5%
- 40%
- 50%
- 62.5%

Answers

The percentage of age-groups has more male customers than female customers is approximately 50%.

The given graph depicts a company's customer analysis based on gender and age group.

Male percentage is more between the age 30-34, 45-49, 50-54 and 55-59.

Here, percentage = 20/41 ×100

= 0.487×100

= 48.7%

≈ 50%

Therefore, option B is the correct answer.

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A carnival game is designed so that approximately 10% of players will win a large prize. If there is evidence that the percentage differs significantly from this target, then adjustments will be made to the game. To investigate, a random sample of 100 players is selected from the large population of all players. Of these players, 19 win a large prize. The question of interest is whether the data provide convincing evidence that the true proportion of players who win this game differs from 0.10. The computer output gives the results of a z-test for one proportion.

Test and CI for One Proportion

Test of p = 0.1 vs p ≠ 0.1

Sample
1 X
19 N
100 Sample p
0.19 95% CI
(0.113, 0.267) Z-Value
3.00 P-value
0.0027

What decision should be made at the α = 0.05 level?

Because the P-value < α = 0.05, the correct decision is to reject H0.
Because the P-value < α = 0.05, the correct decision is to reject Ha.
Because the P-value < α = 0.05, the correct decision is to fail to reject H0.
Because the P-value < α = 0.05, the correct decision is to fail to reject Ha.

Answers

Answer:

Because the P-value < α = 0.05, the correct decision is to reject H0.

Step-by-step explanation:

When the p-value is less than our given significance level, it's outside the rejection region, so there is strong evidence that suggest the null hypothesis is not true and that the alternate hypothesis is favored instead.

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.


Multiply and simplify if possible. SHOW YOUR WORK.

[tex](2\sqrt{3x}-2)(3\sqrt{3x}+5 )[/tex]

Answers

To multiply the given binomials, we use the distributive property. So, the multiplication of the given binomials (2√3x - 2) and (3√3x + 5) is 18x + 4√3x - 10.

Using the distributive property which is given as: (a+b) (c+d) = a*c + a*d + b*c + b*d.

To multiply the binomials (2√3x - 2) and (3√3x + 5), we need to apply the distributive property which will result in four different terms.

Using the distributive property: (2√3x - 2) (3√3x + 5)= (2√3x * 3√3x) + (2√3x * 5) - (2 * 3√3x) - (2 * 5)= 6√(3x*3x) + 10√3x - 6√3x - 10= 6√9x² + (10-6)√3x - 10= 6 * 3x + 4√3x - 10= 18x + 4√3x - 10.

Therefore, the multiplication of the given binomials (2√3x - 2) and (3√3x + 5) is 18x + 4√3x - 10.

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Rotate the given triangle 90°
counter-clockwise
about the
origin.

Answers

The matrix corresponding to the vertices of the triangle after the rotation is given as follows:

[0 -1 -2]

[0 -3 1]

What are the rotation rules?

The five more known rotation rules are given as follows:

90° clockwise rotation: (x,y) -> (y,-x).90° counterclockwise rotation: (x,y) -> (-y,x).180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y).270° clockwise rotation: (x,y) -> (-y,x).270° counterclockwise rotation: (x,y) -> (y,-x).

The vertices of the original triangle are given as follows:

(0,0), (-3,1) and (1,2).

The rotation rule is given as follows:

(x,y) -> (-y, x).

Hence the vertices of the rotated figure are given as follows:

(0,0), (-1, -3) and (-2, 1).

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Find the sum of the first 33 terms of the following series, to the nearest integer.
2,11, 20, ...

Answers

The sum of the first 33 terms of the following series, to the nearest integer is 4818.

What is the sum of the first 33 terms?

The sum of the first 33 terms of the following series, to the nearest integer is calculated as follows;

n = (n/2)(2a + (n-1)d)

where;

n is the number of terms in the seriesa is the first term of the seriesd is the common difference of the series

From the given parameters, we have;

n = 33

a = 2

d = 9

The sum of the first 33 terms is calculated as;

S(33) = (33/2)(2x2 + (33-1)(9))

S(33) = (33/2)(4 + 32(9))

= (33/2)( 4 + 288)

= (33/2)(292)

= 33(146)

= 4818

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Rotate triangle PqR with P(-1,-3), Q(-5,-7) and R(-7,-3)270 counterclockwise about the origin. what are the coordinates of P'

Answers

The coordinates of P' after rotating triangle PQR counterclockwise by 270 degrees about the origin are P'(-3, 1).

To rotate a point counterclockwise about the origin, you can use the following rotation formula:

x' = x * cos(theta) - y * sin(theta)

y' = x * sin(theta) + y * cos(theta)

In this case, we want to rotate the triangle PQR 270 degrees counterclockwise. We can calculate the coordinates of each point after the rotation.

For point P(-1, -3):

x' = (-1) * cos(270°) - (-3) * sin(270°)

y' = (-1) * sin(270°) + (-3) * cos(270°)

We can simplify these equations using the values of cosine and sine for 270 degrees:

x' = (-1) * 0 - (-3) * (-1)

y' = (-1) * (-1) + (-3) * 0

Simplifying further:

x' = 0 - 3

y' = 1 + 0

x' = -3

y' = 1

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Which statement best describes the effect on the graph of y=(x-9)2 if the equation is changed to y = (x + 9)²?
O The graph moves up 18 units.
The graph moves down 18 units.
O The graph moves left 18 units.
O The graph moves right 18 units.
Mark this and return
Save and Exit
Next
Submit

Answers

The statement that best describes the effect on the graph of y=(x-9)² if the equation is changed to y = (x + 9)² is:O C. The graph moves left 18 units.

The effect on the graph of y?

The graph shifts horizontally when the equation is modified from y = (x - 9)2 to y = (x + 9)2. The graph's points' x-coordinates are impacted by the inclusion of 9 inside the brackets.

The graph is moved 9 units to the left by adding 9 to the x-coordinate. As a result, the phrase "The graph moves left 18 units" is the most correct way to describe the effect on the graph.

Therefore the correct option is C.

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If the family plans to move to their retirement home in 10 years which pool would be more cost effective to install how do you know

Answers

The Watkins family should install a chlorine pool to be more cost-efficient.

How to compare to graphs?

In order to compare the two graphs we take a value on the x-axis and then measure the output of the two graphs. This can be done with the help of the graph or by substituting the value of x in the function to measure the output y.

As in the given graph, the x-axis denotes the year while the y-axis denotes the cost of maintaining the pool in that year.

If we compare the two of the given graph we will find the cost of maintaining a chlorine pool is less as compared to a salt water pool at x=10, therefore, after 10 years.

Hence, the Watkins family should install a chlorine pool to be more cost-efficient.

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What is the measure of MN?

Answers

The measure of arc MN include the following: B. 45°.

What is the theorem of intersecting secants?

In Mathematics and Geometry, the theorem of intersecting secants states that when two (2) lines intersect outside a circle, the measure of the angle formed by these lines is equal to one-half (½) of the difference of the two (2) arcs it intercepts.

By applying the theorem of intersecting secants, the value of arc MN can be calculated as follows:

37= 1/2(arc MN + 29)

37(2) = arc MN + 29

74 = arc MN + 29

arc MN = 74 - 29

arc MN = 45 degrees.

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Determine the area of the shades region

Answers

The area of the shaded region is 61.76 square feet.

The given figure has a rectangle and circle.

Let us find the area of both rectangle and circles.

The length of rectangle is 14 ft and width is 8 ft.

Area = length × width

=14×8

=112 square feet.

The diameter of the circle is 8 feet because diameter is equal to width of rectangle.

Radius =diameter/2

= 4 ft.

Area of circle =πr²

=3.14×4²

=3.14×16

=50.24

To find the area of shaded region subtract area of circle from area of rectangle.

Shaded area = 112-50.24

=61.76 square feet.

Hence, the area of the shaded region is 61.76 square feet.

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In the beginning of BS 2077, Dolma deposited Rs 1,20,000 in her account a rate of 9% p.a. If she paid 5% of her interest as income tax, how much amount did she receive in the beginning of BS 2080?​

Answers

Dolma will receive Rs.153,486.69 at the beginning of BS 2080 as detailed below

What is effective after-tax rate of return?

The effective after-tax rate of return in this case is determined as the 9% deposit return rate multiplied by 1 minus the tax rate as stated below:

effective after-tax rate of return= gross rate of return*(1-tax rate)

The gross rate of return is the return on the deposit before considering the tax rate.

gross rate of return=9%

tax rate=5%

effective after-tax rate of return=9%*(1-5%)

effective after-tax rate of return=8.55%

The future value of the deposit after three years(beginning of 2077-2080=3years), is determined using the future value formula of a single cash flow below:

FV=PV*(1+r)^N

FV=future value after 3 years=unknown

PV=Rs.120,000

r=8.55%

N=3

FV=120000*(1+8.55%)^3

FV=120000*(1,0855)^3

FV=120,000*1.279055776375

FV=Rs.153,486.69

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A cooler is filled with Sprite (s), Pepsi (p), Coke (c), Mountain Dew (m), and Dr.Pepper (d). One of these is selected at random.

What is the sample space for this experiment?

A. S={c, p}

B. S={s, p, c, m, d, g}

C. S={c, p}


D. S={s, p, c, m, d}

Answers

The sample space for this experiment is D. S={s, p, c, m, d}.

The graph shows the hourly wage requirement m (in dollars) *
for employees in a state. Which inequality represents
the state's hourly wage requirement. (section 2.2)
7.5
8
m≥ $9.5 per hour
m> $9.5 per hour
m≥ $9.25 per hour
m> $9.25 per hour
8.5
9
9.5 10
1 point

Answers

An inequality that represents the state's hourly wage requirement include the following: C. m ≥ $9.25 per hour.

What is an inequality?

In Mathematics and Geometry, an inequality simply refers to a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an algebraic equation based on any of the inequality symbols;

Greater than (>).Less than (<).Greater than or equal to (≥).Less than or equal to (≤).

Assuming the variable m represent the state's hourly wage requirement. Additionally, each interval on the number line represent 0.25 per hour.

Since the shaded circle (dot) is located at point 9.25 and the arrows points or increases to the right, an inequality that represents the state's hourly wage requirement is m ≥ $9.25 per hour.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

How many different passwords can come from the word Alabama

Answers

There are 5040 different passwords that can be created from the word "Alabama" when using all the letters.

To calculate the number of different passwords that can be created from the word "Alabama," we need to consider the total number of permutations.

The word "Alabama" contains 7 letters. To find the number of different passwords, we need to calculate the number of permutations of these 7 letters.

The formula to calculate permutations is given by:

nPr = n! / (n - r)!

Where n is the total number of items (letters in this case), and r is the number of items selected (length of the password).

For the word "Alabama," let's assume we want to create passwords of length 7, using all the letters.

n = 7 (number of letters in "Alabama")

r = 7 (length of the password)

Using the formula, we can calculate the number of permutations:

7P7 = 7! / (7 - 7)!

= 7! / 0!

= 7! / 1

= 7 × 6 × 5 × 4× 3 × 2 × 1

= 5040

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Alvin’s average paddling rate was ____

Answers

The required answer is: it is not possible to determine Alvin's average paddling rate based on the given information.

Given that table of terms Distance, Rate and  Time

Against the current d r - 2 km/hr 8 hours

With the current d r + 2 km/hr 3 hours

To set up an equation to solve for Alvin's average paddling rate, we can use the formula: rate = distance/time.

For the first row : (r - 2 km/hr) = d/8.

For the second row: (r + 2 km/hr) = d/3.

To solve for r, we can equate the rates against the current and solve for r.

(r - 2 km/hr) = (r + 2 km/hr)

Simplifying the equation, we get: r - 2 = r + 2.

By solving this equation, we find that the "r" terms cancel out, resulting in -2 = 2, which is not a true statement. This indicates that there is no solution for Alvin's average paddling rate in this scenario.

Therefore, it is not possible to determine Alvin's average paddling rate based on the given information.

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Graph the equation by plotting three
points. If all three are correct, the line
will appear.
-3y = -x - 6

Answers

Answer:

y=x/3+2

Step-by-step explanation:

y=x/3+2 would be (-6,0) and (0,2)

50 Points! Multiple choice geometry question. Photo attached. Thank you!

Answers

The probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus" is:  

(A) 1/720

How to find the probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus"?

Probability is the likelihood of a desired event happening. Mathematically:

Probability = Number of occurrence / Number of possible outcomes

The number of permutations of 6 letters is:

6! =720

Out of these 720 permutations, only one spells "abacus" (based on the arrangement of letters).

Thus, the probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus" is:  

1/720

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Use four unit multipliers to convert 630 square yards to square inches.

Answers

We transformed 630 square yards to square inches, resulting in a value of 816,480 square inches.

To convert 630 square yards to square inches, we can utilize the following unit multipliers:

1 yard = 3 feet (since there are 3 feet in a yard)

1 foot = 12 inches (since there are 12 inches in a foot)

1 square yard = 1 yard × 1 yard = 3 feet × 3 feet = 9 square feet

1 square foot = 12 inches × 12 inches = 144 square inches

Now, we can set up the conversion using the unit multipliers:

630 square yards × (9 square feet / 1 square yard) × (144 square inches / 1 square foot) = 630 × 9 × 144 square inches

Simplifying the calculation:

630 × 9 × 144 square inches = 816,480 square inches

Therefore, 630 square yards is equal to 816,480 square inches.

By using the four unit multipliers and converting yards to feet and then to inches, we successfully transformed 630 square yards to square inches, resulting in a final value of 816,480 square inches.

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URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS

Answers

The total number of cars sold by two dealerships is 294.

Let x be the number of cars and y be the number of trucks.

As, there are total 164 cars then

x+ y= 164   ........(1)

The second dealership sells twice as many cars and half as many trucks as the first dealership and sold a total of 229 cars and trucks.

so, 2x+ y/2 = 229.....(2)

Solving the equation as

y= 164- x

and, 2x + (164-x)/2 = 229

4x + 164 -x = 458

3x= 458 - 164

3x = 294

x= 294/3

x = 98

Thus, the total number of cars sold by two dealerships is 294.

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a plant has an initial height of 7 inches and grows at a constant rate of 3 inches each year. a second plant also grows at a constant rate has an initial height of 2 inches and is 14 inches tall after 3 years. after how many years are the plants the same height.

Answers

Let "x" be the number of years it takes for the two plants to be the same height.The first plant has an initial height of 7 inches and grows at a constant rate of 3 inches each year. So, the two plants will be the same height after 5 years.

Therefore, after "x" years, its height will be:7 + 3xThe second plant also grows at a constant rate and has an initial height of 2 inches. After 3 years, its height is 14 inches.

Therefore, its rate is: Rate = (Final height - Initial height) / TimeRate = (14 - 2) / 3Rate = 12 / 3Rate = 4So, after "x" years, the second plant's height will be:2 + 4x.

To find when the plants are the same height, we can set the expressions for their heights equal to each other:7 + 3x = 2 + 4xSolving for "x":3x - 4x = 2 - 73x = -5x = -5/(-1). Therefore, x = 5, the two plants will be the same height after 5 years.

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HELP!! ILL MARK BRRAINLIST

Answers

Answer:

I think answer is D but it could be wrong not sure

Determine the perimeter of a square with a diagonal length of 8 feet.
a. 4√2
b. 16√2
c. 8√2
d.16√4

Answers

The perimeter (P) by multiplying the side length by 4:
P = 4 * (4√2) = 16√2
The answer: b. 16√2

To find the perimeter of a square with a diagonal length of 8 feet, first, you need to determine the side length. In a square, the diagonal length (d) is related to the side length (s) through the Pythagorean theorem as follows:

d = s√2

Now, plug in the given diagonal length (8 feet) and solve for s:

8 = s√2
s = 8/√2
s = 4√2 (simplified by multiplying both numerator and denominator by √2)

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Using quadratic formula

Answers

As per the given equation, when a = 3 and b = -2, the value of the expression [tex]b^2[/tex] - 4ab is 28.

When a = 3 and b = -2, we replace the given values into the formula and make the necessary calculations to evaluate the expression b² - 4ab.

Now,

[tex](-2)^2 - 4 * 3 * (-2)[/tex]

4 - 4 * 3 * (-2)

Multiplying -4 and 3 gives us -12, so the expression becomes:

4 - (-12) * (-2)

Multiplying -12 and -2 gives us 24, so the expression further simplifies to:

4 + 24

Adding 4 and 24 together yields:

28

Therefore, when a = 3 and b = -2, the value of the expression b² - 4ab is 28

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Your question seems incomplete, the probable complete question is:

Using quadratic formula, Evaluate b²-4ab when a= 3, b = -2

Solve for the rate (as a %). Round to the nearest tenth of a percent when necessary. What is the rate if the base is 366 and the portion is 50?

Answers

Answer:

[tex]\Huge \boxed{\text{13.66$\%$}}[/tex]

Step-by-step explanation:

To find the rate, we need to use the following formula:

[tex]\LARGE \boxed{ \boxed{\text{Rate = $\frac{\text{Portion}}{\text{Base}}$$\times$100}}}[/tex]

Where "Portion" is the part of the whole and "Base" is the whole.

Now, let's plug in the given values:

[tex]\large \text{Rate = $\frac{\text{50}}{\text{366}}$$\times$100 = 13.66 (Rounded to the nearest tenth of a percent)}[/tex]

Therefore, the rate is 13.66% (rounded to the nearest tenth of a percent).

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give an example of a real world word problem for a two step inequality

Answers

This example demonstrates a two-step inequality where we first express the savings equation and then solve for the variable 'w' to determine the number of weeks needed to reach the savings goal.

Understanding Inequality

Liam is saving money to buy a new video game console. He has already saved $50 and is saving $10 per week from his allowance. He wants to determine how many weeks it will take for his savings to reach at least $150.

Let:

number of weeks Liam saves = w

total amount of money he saves = S

Step 1: Express the first step of the problem as an inequality.

Liam saves $10 per week, so the amount of money he saves after w-weeks is 10w. We can write the first step of the inequality as:

10w + 50 ≥ 150

Step 2: Solve the inequality.

To isolate 'w', we can subtract 50 from both sides of the inequality:

10w ≥ 150 - 50

10w ≥ 100

Finally, divide both sides of the inequality by 10 to solve for 'w':

w ≥ 10

Therefore, it will take Liam at least 10 weeks to save enough money to reach $150 for the video game console.

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Mark was told his dinner would be ready at six he left his house at 12 and traveled in his car at an average speed of 45 mph test mom's house 300 miles away did Mark make it home in time for dinner

Answers

Answer:

Step-by-step explanation:

speed= distance/time taken

45=300/t

t=300/45

t=6.7

from 18:00 to 12:00, it's 6hours

so mark won't be on time

Find the value of x to the nearest
hundredth of a foot.

x ft
16 ft
28°

A 7.51
B 8.51
C 14.13
D 18.12

Answers

The value of x to the nearest hundredth of a foot as required to be determined in the task content is; Choice A; 7.51.

What is the value of x to the nearest hundredth of a foot?

It follows from the task content that the value of x as indicated is to be determined.

As the given triangle is a right triangle whose hypothenuse and side x is opposite the angle whose measure is 28°.

It follows from trigonometric ratios that;

sin 28° = x / 16

x = 16 sin 28°

x = 7.51.

Ultimately, the value of x to the nearest hundredth is; Choice A; 7.51.

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She has just found a magazine that assigns each car an index for styling and an index for gas mileage. Each index runs from 1 to 10, with 10 representing ... Find the exact value of tan 105. Find a circle passing through points 3. (2 cos,2 sin), (2 cos * , 2 sin ) and (2 cos., 2 sin). 4 Write the equation of this circle. the crank ab has a constant clockwise angular velocity of 2000 rpm. for the crank position indicated, determine (a) the angular velocity of the connecting rod bd, and (b) the velocity of the piston p. Representing a large auto dealer, a buyer attends car auctions. To help with the bidding, the buyer built regression equation to predict the resale value of cars purchased at the auction. The equation is given below. Estimated Resale Price (5) = 20,000 -2,050 Age (year), with r2 = 0.46 and so = $3,400 Use this information to complete parts (a) through (c) below. (a) Which is more predictable: the resale value of one five-year-old car, or the average resale value of a collection of 16 cars, all of which are five years old? O A. The resale value of one five-year-old car is more predictable because only one car will contribute to the error. OB. The average of the 16 cars is more predictable because the averages have less variation. O C. The resale value of one five-year-old car is more predictable because a single observation has no variation OD. The average of the 16 cars is more predictable by default because it is impossible to predict the value of a single observation. (b) According the buyer's equation, what is the estimated resale value of a five-year-old car? The average resale value of a collection of 16 cars, each five years old? The estimated resale value of a five-year-old car is $ (Type an integer or a decimal. Do not round.) The average resale value of a collection of 16 cars, each five years old is $ (Type an integer or a decimal. Do not round.) (c) Could the prediction from this equation overestimate or underestimate the resale price of a car by more than $3,000? O A. No. Since $3,000 is less than the standard error of $3,400, it is impossible for the regression equation to be off by more than $3,000. OB. Yes. Since $3,000 is less than the standard error of $3,400, it is quite possible that the regression equation will be off by more than $3,000. O C. No. Since $3,000 is greater than the absolute value of the predicted slope, $2,050, it is impossible for the regression equation to be off by more than $3,000. OD. Yes. Since $3,000 is greater than the absolute value of the predicted slope, $2,050, it is quite possible that the regression equation will be off by more than $3,000. Let Y, Y2, ..., Y, be a random sample in which Y, possesses the probability density function f(yi | ) = {(1/)e^-yi/, 0 < y; < [infinity], : > 0 0 elsewhere, Find the maximum likelihood estimator for 1/ a manufacturer produces both widgets and gadgets. widgets generate a profit of $75 each and gadgets have a profit margin of $40each. to produce each item, a setup cost is incurred. this setup cost is $500 for widgets and $300 for gadgets. widgets consume 8 units of raw material a and 1 unit of raw material b. gadgets consume 6 units of raw material a and 2 units of raw material b. each day, the manufacturer has 500 units of each raw material available. assume that it is possible to produce fractional quantities of widgets and gadgets. Consider the following demand curve: P = Q where 1 > a > 0. What would be the associated marginal revenue curve? a. MR = 2Q. b. MR = 2Q. c. MR = (1-a)Q. d. None of the above. 7. Stock quotes Smith Enterprises recently was profiled on a financial information website and touted as a "hot" growth stock. You acquired the stock quote shown here from that website. Smith Enterprises (NASDAQ: SME) Last Trade: 47.22-51.96 Day's Range: 51.63 4:00 PM ET 52wk Range: 25.48-60.71 Trade Time: One-Day Stock Return: 11.25% Volume: 1,419,317 Prev. Close: 46.41 Avg. Vol. (3m): 1,921,518 Open: 47.25 Market Cap: 1.638 Bid: N/A P/E (tm): 27.02 Asic N/A EPS (ttm): ly Target Est: 55.40 Div. & Yield: 0.20 (0.40%) The last trade time is shown to be at 4:00 PM Eastern Time. The abbreviation "ttm" stands for "trailing twelve months," and the number shown reflects data from the previous 12 months. The abbreviation "3m" reflects data from the previous 3 months. What exchange does Smith Enterprises trade on? O NASDAQ OAMEX O FTSE DAX O SME What is Smith's earnings per share (EPS) for the trailling 12 months? O $1.67 O $2.19 FTSE O DAX OSME What is Smith's earnings per share (EPS) for the trailing 12 months? O $1.67 O $2.19 O $1.91 O $1.75 O $2.14 How much did the price increase today over yesterday's closing price? O $5.01 O$5.57 O $5.64 O $5.15 O $5.22 How heavy was the trading of Smith's stock today relative to the normal level of trading? O Average trading O Relatively heavy trading O Relatively light trading Grade It Now Which of the following options is correct?Renal calculi contain crystallized calcium, magnesium, and uric acid. Explain why patients with hyperparathyroidism would be at risk for developing renal calculi.a. Hyperparathyroidism increases the amount of mineralocorticoids produced, which increases the level of magnesium in the blood. The excess magnesium is filtered out in the kidneys and can precipitate into renal calculi.b. Hyperparathyroidism decreases the amount of antidiuretic hormone produced which leads to more concentrated urine and precipitation of minerals.c. Hyperparathyroidism increases the amount of calcitonin produced, which increases the level of calcium in the blood. The excess magnesium is filtered out in the kidneys and can precipitate into renal calculi.d. Hyperparathyroidism increases the amount of parathyroid hormone produced, which increases the level of calcium in the blood. The excess magnesium is filtered out in the kidneys and can precipitate into renal calculi. 10. Use Euler and Runge Kutta order 2 methods to solve the following equations: y = xy, y(0) = 4 for x = 0(0.1)0.3 =x+y, y(0) = 2 for x = 0(0.2)0.4 y' = 1 + xy, y(0) = 4 for x = 0(0.1)0.3 A rope is 125 units long. The rope is cut into two pieces, so that the lengths of the pieces are in the ratio 2:3. What is the length of the longer piece expressed in simplest radical form? O 52 units O 55 units O 35 units 25 units For each of the following assets, indicate which of the monetary aggregates M2, M2+, and M3 includes them. a. Currency is included in [hm only M2. only M3 none of M2, M2+, and M3. M2, M2+, and M3. only M2+ and M3. only M2 + only M2 and M2 + only M2 and M3. COIN 1 20. In each case, find the image of the set A under the given map f. (a) A = (-2, and f: RR with f(x) = 2x + 3 (6) A = 1) and f: RR with f(x) = 2x2 - 1 (c) A = B2(0,0) and S: RR with f(x,y) = 22 - y2 (d) A = B2(1.1) and / : R2 -R2 with f(3) = -21. 2 Variation is a great example of how mathematics is used to model and solve real-world problems. Many fields of study contain examples of the three different kinds of variation:Direct variation (for example, y = kx)Inverse variation (for example, y = k/x)Joint variation (for example, z = kxy)Definition of Joint VariationJoint variation is the same as direct variation with two or more quantities.That is:Joint variation is a variation where a quantity varies directly as the product of two or more other quantities.Let's first understand direct variation.Direct variation occurs when two quantities change in the same manner.That is:Increase in one quantity causes an increase in the other quantity.Decrease in one quantity causes a decrease in the other quantity.For example:The cost of a pencil and the number of pencils you buy.Buy more pay more.Buy less pay less.Direct variation between variables x and y can be expressed as:y = kx, where 'k' is the constant of variation and k 0.y = kxz represents joint variation. Here, y varies jointly as x and z.More Examples on Joint Variationy = 7xz, here y varies jointly as x and z.y = 7x2z3, here y varies jointly as x2 and z3."Math DictionaryThe variable is in the bottom of a fraction or in the denominator. (The Opposite of Direct Variation) In an inverse variation, the values of the two variables change in an opposite manner - as one value increases, the other decreases. For example, a biker traveling at 8 mph can cover 8 miles in 1 hour. If the biker's speed decreases to 4 mph, it will take the biker 2 hours (an increase of one hour), to cover the same distance.Please start by addressing one or more of the following topics to get the discussion going:How would you describe the difference between direct variation and joint variation in words? Use examples to help illustrate.Pick a field of study of interest to you and give an example of variation in that field. Some possible areas to consider are: Economics, Finance, Geometry and Physics. Example: If your hourly pay rate is $15/hour, then your weekly pay p is given by the formula p=15h where h is the number of hours worked in a week. So, your weekly pay varies directly as the number of hours worked in a week with the constant of variation = 15.Most formulas are actually examples of variation. Pick a well-known formula and describe the type of variation as well as the constant of variation, k. Example: The area A of a triangle with base b and height h is given by the formula A=bh. So, the area of a triangle varies jointly as the base and height (both direct) with the constant of variation = .Give an example from real life where composite functions are utilized. For ideas, you may look it up on the internet or find examples in the book. .Question 2 460 households were surveyed out of which 372 households have internet fiber cable, what is the up to 3 decimal places) Determine lim x0 2(x + 1)/x, or show that it does not exist. Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms (Assume all variables are positive) logs 9 O log, a log, O log, 9 * log O log) 9+ logs O log, 9.log) O None of these The results of a survey show that the percent of adults in a certain town who want to change the name of the town is in the interval [0.78 ,0.86]What is the point estimate for the percent who want to change the towns name?What is the polls margin of error?Do you think the town is most likely to change its name? Why? Consider the following statements concerning confidence intervals:A. A confidence interval can only use information from the sample data to construct an interval estimate for a sample statistic not a population parameter.B. An interval estimate is often preferred to a point estimate because an interval estimate provides more information.C. To derive a confidence interval for a population mean when the population variance is unknown AND the sample size is small ( outpouring of magma from a long crack in the lithosphere is a