Hello, I need some assistance with this homework question please for precalculusHW Q14

Answer:

m-9

Step-by-step explanation:

i hope this helps :)

Answer:

B: m-9

Step-by-step explanation:

Drew is at a height of 349.4 feet off the ground on the Ferris wheel after traveling 150 feet from the bottom. Matteo traveled 91.4 feet around the wheel to reach a height of 218.1 feet.

To find Drew's height, we can use the Pythagorean theorem: the radius of the Ferris wheel is the hypotenuse, and the distance Drew traveled plus her height off the ground is the other leg.

√(150² + r²) = r + h

h = √(150² + r²) - r

where r is the radius of the Ferris wheel and h is Drew's height off the ground.

To find the value of r, we can use the fact that Drew's height off the ground at the top of the Ferris wheel is twice her height off the ground at the bottom.

So, h = 2r - h

r = 2h/3.

Substituting r = 2h/3 into the equation for h that we found earlier

h = √(150² + (2h/3)²) - 2h/3.

Solving for h, we get h = 349.4 feet.

To find how far Matteo traveled around the wheel, we can use a similar approach. Let d be the distance Matteo traveled and r be the radius of the Ferris wheel.

√(d² + r²) = 218.1 + r.

d = √(218.1² + r²) - r.

Using the value of r that we found earlier (r = 2h/3), we can substitute and solve for d to get d = 91.4 feet.

Therefore, Drew's height on the Ferris wheel is 349.4 feet after traveling 150 feet from the bottom, while Matteo traveled 91.4 feet around the wheel to reach a height of 218.1 feet.

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The correct answer is A. The standard error of the sample proportion will become larger as the sample size increases.

The standard error is a measure of the variability or uncertainty associated with an estimate. In the case of the sample proportion, it measures the spread or variability in the proportion of successes observed in the sample compared to the true population proportion.

As the sample size increases, the standard error decreases, indicating greater precision in estimating the true population proportion. This is because a larger sample provides more information and reduces the impact of sampling variability.

On the other hand, options B, C, and D are incorrect. The standard error is not affected by the population proportion itself but rather by the sample size. The population proportion approaching 0.50, 1.00, or 0 does not directly impact the standard error, although it may affect other measures such as the margin of error or confidence intervals. The primary factor influencing the standard error is the sample size, with larger samples leading to smaller standard errors.

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1/64 fraction is equal to 0.015625 in decimal form.

To change the fraction 1/64 to a decimal, we need to perform division.

1 divided by 64 can be written as:

0.015625

----------

64 | 1.000000

   0

  10

   0

The result of the division is 0.015625. This means that 1/64 is equal to 0.015625 in decimal form.

Note that in this case, we carried the division out to six decimal places, but the question specified that we should carry it out to three decimal places. In that case, we would round the answer to 0.016.

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Answer:

4L + 8H = 512 (First answer)

You can take 92 low resolution pictures (second answer)

Step-by-step explanation:

Let L represent the number of low resolution pictures you take and H the number of high resolution pictures you can take.

You only have 512 megabytes.

Therefore, the number of megabytes the low resolution pictures you take plus the amount of megabytes the high rsolution you take in total should be 512

Therefore your equation is:

4L + 8H = 512 (First answer)

You took 18 high resolution pictures, so substitute 18 for H

4L+8(18) = 512

4L+144=512

subtract 144 on both sides

4L=368

divide by 4

L= 92

You can take 92 low resolution pictures

Hope this helps!

This question is incomplete because it was a details in the question was not written correctly.

Complete Question:

A sundae requires 2 ice-cream scoops and 4 raspberries, and a milkshake requires 3 ice-cream scoops and 5 raspberries. Laila wants to sell sundaes and milkshakes with at most 80 ice-cream scoops and 150 raspberries. Let S denote the number of sundaes she makes and M the number of milkshakes she makes. Write an inequality that represents the condition based on the number of (ICE-CREAM SCOOPS).

Answer:

An inequality that represents the condition based on the number of (ICE-CREAM SCOOPS) is given as:

2S + 3M ≤ 80

Step-by-step explanation:

From the above question, we are told that:

Let S denote the number of sundaes Laila makes

M the number of milkshakes

a) A sundae requires 2 ice-cream scoops and 4 raspberries

A sundae = 2S and 4S

b) A milkshake requires 3 ice-cream scoops and 5 raspberries.

A milk shake = 3M and 5M

Laila wants to sell sundaes and milkshakes with at most 80 ice-cream scoops and 150 raspberries .

Therefore, an inequality that represents the condition based on the number of (ICE-CREAM SCOOPS) is given as:

2 ice cream scoops + 3 ice cream scoops ≤ 80

2S + 3M ≤ 80

Answer:

x= -5, 0, 5

2x(x^2-25)=0

x(x^2-25)=0

x=0

x^2-25=0

x=-5

x=5

Given:

Savings for each week = $25

Amount required before Carlos purchase a car = $565

To find:

The number of full weeks in which he will have enough money to purchase the car.

Solution:

Let the required number of weeks be x.

Savings for 1 week = $25

Savings for x week = $25x

Savings must be greater than equal to $565 to purchase the car.

\(25x\geq 565\)

Divide both sides by 25.

\(x\geq \dfrac{565}{25}\)

\(x\geq 22.6\)

So, the smallest possible integer value of x is 23.

Therefore, 23 week are required to have enough money to purchase the car.

Of 800 students in a university, 360, or 45%, live in dormitories. the 800 is an example of population size. Population size is a number that represents the total quantity of a particular group of items or people.

In this case, the population size is 800 students in a university. This population size is used to calculate the percentage of students who live in the dormitories. In this example, the percentage of students who live in the dormitories is 45% or 360 students.   Population size can be used to analyze different trends or patterns within a group of people.

For example, if the university wanted to determine the number of students who commute from home, they could use the population size of 800 students to calculate the percentage of students who commute from home. Similarly, the university could use the population size to calculate the percentage of students who live off-campus.   Population size can also be used to track changes over time.

For example, if the university wanted to determine if the number of students living in the dormitories had increased or decreased since last year, they could compare the current population size of 800 students with the population size from the previous year.

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Answer:

90°

Step-by-step explanation:

follow the tangent rule.

Among the given numbers (46, 53, 89, 21, 48, 47, and 32), two numbers differ by 43 units.

To find the two numbers that differ by 43, we can compare each pair of numbers and check if their difference is equal to 43.

Pair-wise differences:

46 - 53 = -7

46 - 89 = -43

46 - 21 = 25

46 - 48 = -2

46 - 47 = -1

46 - 32 = 14

53 - 89 = -36

53 - 21 = 32

53 - 48 = 5

53 - 47 = 6

53 - 32 = 21

89 - 21 = 68

89 - 48 = 41

89 - 47 = 42

89 - 32 = 57

21 - 48 = -27

21 - 47 = -26

21 - 32 = -11

48 - 47 = 1

48 - 32 = 16

47 - 32 = 15

From the calculations, we can see that the numbers 46 and 89 differ by 43 units. Therefore, among the given numbers, 46 and 89 are the two numbers that differ by 43.

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Darwin's geometric ratio of increase pertains specifically to the growth rate of populations in biological organisms. According to Darwin's theory of evolution, populations have the potential to increase exponentially over time if certain conditions are met. The geometric ratio of increase, often denoted as "r" or the intrinsic rate of natural increase, represents the factor by which a population multiplies during each reproductive cycle or generation.

In the context of natural selection, individuals with higher reproductive rates (higher r-values) have a greater chance of passing on their genetic traits to the next generation. Over time, this can lead to significant population growth and evolutionary changes within a species. However, the geometric ratio of increase is limited by various factors, such as availability of resources, competition, predation, and environmental constraints, which can result in a balance between population growth and environmental carrying capacity.

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The correct answer is (d) Relative Frequency.

Sean used the method of Relative Frequency to conclude that the probability of getting heads on a flip of his coin is 0.47.

The method of Relative Frequency involves conducting a series of experiments or observations and calculating the ratio of the number of times an event occurs to the total number of trials.

In this case, Sean flipped the coin 100 times and got heads 47 times. The relative frequency of getting heads is then calculated as 47/100, which is equal to 0.47 or 47%.

By using the method of Relative Frequency, Sean is making an inference about the probability of getting heads based on his observed data.

This method is empirical in nature and relies on actual observations or experiments rather than theoretical calculations or personal beliefs. It provides an estimate of the probability based on real-world data.

Therefore, the correct answer is (d) Relative Frequency.

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To determine if function f is one-to-one using the given terms "integer" and "one-to-one," we will consider the function f: Z → Z defined by the rule f(n) = 2 - 3n for each integer n. and we will see that since n1 equals n2 when f(n1) = f(n2), the function f is one-to-one.

A function is one-to-one (or injective) if each input value corresponds to a unique output value. In other words, if f(n1) = f(n2), then n1 must equal n2.
Suppose n1 and n2 are any integers such that f(n1) = f(n2). Substituting from the definition of f gives: 2 - 3n1 = 2 - 3n2
Now, let's solve for n1 and n2 step by step:
Step:1. Subtract 2 from both sides of the equation:
-3n1 = -3n2
Step:2. Divide both sides by -3:
n1 = n2
Since n1 equals n2 when f(n1) = f(n2), the function f is one-to-one.

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The value of the expression 1+1+1+1+11+1+1+1+11+1x0+1 is 30.

To evaluate the given expression, we follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

First, we perform the multiplication: 1x0 = 0. The expression now becomes 1+1+1+1+11+1+1+1+11+0+1.

Next, we perform the addition and subtraction operations from left to right: 1+1 = 2, 2+1 = 3, 3+1 = 4, 4+11 = 15, 15+1 = 16, 16+1 = 17, 17+1 = 18, 18+11 = 29, 29+0 = 29, and finally 29+1 = 30

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PLEASE GIVE BRAINLIEST <33

Answer:

The answer is 30

Step-by-step explanation:

First we'll start with PEMDAS

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

We'll start with multiplication: 1x0=0

Now the equation is: 1 + 1 + 1 + 1 + 11 + 1 + 1 + 1 + 11 + 1

Since we have two sets of 11, it would equal 22

Now the equation is: 22 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1

We have eight sets of 1. Adding them all together would equal 8.

Now the equation is: 22 + 8 which would equal 30

The solution to the inequality are the region in the shaded area and the graph is attached

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

y ≥3(0.8)^x

y ≥ x² - 5

Represent properly

y ≥ 3(0.8)^x

y ≥ x² - 5

Next, we make a plot of the system to determine the solution

The shaded area in the plot represent the solution to the inequality

In this case, one of the coordinates in the shaded area has a coordinate of (0, 5)

None of the options represent the shaded area (see attachment)

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The number of tickets sold will be equal to 29.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Let x represent the number of child tickets that were sold

Let y represent the number of adult tickets that were sold

5.30x +9.40y= 1206

The number of adult tickets sold was three times greater than the number of child tickets,

y= 3x

Substitute 3x for y in the equation,

5.40x + 9.40y= 974.40

5.40x + 9.40(3x)= 974.40

5.40x + 28.2x= 974.40

33.6x= 974.40

Divide both sides by the coefficient of x which is 33.5,

x= 974.40/33.6

x = 29

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Answer:

19 is 38x - 3y - 34

20 would be yes

The radian measure of the angle at the center of the circle is approximately 1.6623 radians.

We are given that the radius of the circle is 77.0 cm and the length of the intercepted arc is 128 cm. We need to find the radian measure of the angle at the center of the circle.

To solve this problem, we use the formula relating the angle at the center of a circle, the radius of the circle, and the arc length intercepted by the angle.

The formula is given byθ = s/rwhereθ = angle at the center of the circle in radians s = arc length intercepted by the angle r = radius of the circle Substituting the given values, we getθ = 128/77.0 = 1.6623 radians (rounded to four decimal places)

Therefore, the radian measure of the angle at the center of the circle is approximately 1.6623 radians.

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Answer:

a. True, because they are corresponding angles.

b. False, because angles 1 and 2 are supplementary, meaning that they add up to 180 degrees, but 125 + 65 = 190 degrees.

c. True, because they are corresponding angles.

d. True, becuase they are two angles that add up to 180 degrees.

e. True, because they are both interior angles on opposite sides of the transversal.

Answer:

a. True.

b. False.

c. True.

d. True.

e. True.

Step-by-step explanation:

a. This statement is true because angles 6 and 8 are vertical angles. That means they are congruent.

b. This statement is false because Elm Street is a straight line, which means that angles 1 and 2 are supplementary angles and their measures will add up to be 180 degrees. 65 + 125 = 190, which is not equal to 180.

c. This statement is true because angles 5 and 1 correspond to each other.

d. This statement is true because angles 7 and 8 form a straight line.

e. This statement is true because they are interior angles that are alternate.

Hope this helps!

Have you done it cause I also need help???

Answer:

\(\sqrt{65}\)

Step-by-step explanation:

the absolute value of the complex number a + bi is

| a + bi | = \(\sqrt{a^2+b^2}\)

then

| 4 + 7i | = \(\sqrt{4^2+7^2}\) = \(\sqrt{16+49}\) = \(\sqrt{65}\)

Todd use to save $500 in less than 16 weeks and have $20 extra in Plan C.

In plan A,

    Plans for saving = $500

  Amount of saving each week = $20

∴ Number of weeks needed to make goal = (500 ÷ 20) (by using division)

                                                                       = 25

In plan B,

    Plans for saving = $500

   Amount of saving each week = $30

∴ Number of weeks needed to make goal = (500 ÷ 30) (by using division)

                                                                       = 17

In plan C,

    Plans for saving = $500

   Amount of saving each week = $40

∴ Number of weeks needed to make goal = (500 ÷ 40) (by using division)

                                                                       = 13

In plan D,

    Plans for saving = $500

   Amount of saving each week = $50

∴ Number of weeks needed to make goal = (500 ÷ 50) (by using division)

                                                                       = 10

So, Todd use to save $500 in less than 16 weeks and have $20 extra in Plan C.

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Answer:

8.75

Add everything together

Ok so if 1 cm= 9.7 miles

and we have 4 cm

we can multiply 4 by 9.7  (4 x 9.7)= ANSWER IS 38.8

-------------------------------------------------------------------------------------------

Another way u can think is if 1 cm= 9.7 miles

and there is 4 cm

we can add 9.7 four times to get our answer

ANSWER=38.8

To determine the quadrant in which u/2 lies, we need to first find the quadrant where u lies. Given that tan(u) = -3/4 and 3/2 < u < 2, u is in the third quadrant. Now, to find the quadrant of u/2, we can divide the bounds by 2:

(3/2)/2 < u/2 < 2/2
3/4 < u/2 < 1

These conditions indicate that u/2 lies in the first quadrant.

Given conditions are :tan(u) = -3/4, 3/2 < u < 2We need to determine the quadrant in which u/2 lies.Tan is negative in 2nd and 4th quadrants. So, angle lies in either 2nd or 4th quadrants as 3/2 < u < 2 (i.e., second quadrant).But if angle lies in second quadrant then u/2 would lie in third quadrant, which is not possible. Therefore, angle lies in 4th quadrant. Hence, angle u = tan⁻¹(-3/4) ≈ -36.87°So, u/2 = -36.87/2 ≈ -18.43°The quadrant in which u/2 lies is the fourth quadrant.

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                            "Complete questions"

Use the given conditions. tan(u) = -3/4, 3π/2 < U <2n (a) Determine the quadrant in which u/2 lies. Quadrant I Quadrant II Quadrant III Quadrant IV Nice! (b) Find the exact values .

Answer:

X=9

Step-by-step explanation:

9+6=15

15-7=8

Absolute value equals a positive

Answer:

21

Step-by-step explanation:

Answer:

The first option is the answer

Answer:

  FALSE

Step-by-step explanation:

Applying the distributive property on the left side gives ...

  2x +16 = 2x -8

Subtracting 2x from both sides gives ...

  16 = -8 . . . . a FALSE statement

The given statement is false.

_____

When an algebraic equation is transformed according to the properties of equality, the truth of it does not change.