help plz quick i will make u a brainllest

Answer:

The value of p = 120 when q = 5

Step-by-step explanation:

We know that if y varies inversely with x, we get the equation

y ∝ 1/x

y = k/x

k = yx

where 'k' is called the constant of proportionality.

In our case,

If p is inversely proportional to the square of q, then

p ∝ 1/q²

p = k/q²

k = pq²

As p is 30 when q is 10, so

substituting p = 30 and q = 10

k = (30) (10)²

k = (30)(100)

k = 3000

Now,

Determining the value of p when q = 5

Using the equation

p = k/q²

now substituting k = 3000 and q = 5

p =  3000 / (5)²

p = 3000/25

p = 120

Therefore, the value of p = 120 when q = 5

Answer: y = 2(x + 2)² - 5

Step-by-step explanation:

          We are going to use the completing the square method to transform this quadratic equation from standard form to vertex form.

Given:

     y = 2x² + 8x + 3

Factor the 2 out of the first two terms:

     y = 2(x² + 4x) + 3

Add and subtract \(\frac{b}{2} ^2\):

     y = 2(x² + 4x + 4 - 4) + 3

Distribute the 2 into -4 and combine with the 3:

     y = 2(x² + 4x + 4) - 5

Factor (x² + 4x + 4):

     y = 2(x + 2)² - 5

Answer:

X≤3

Step-by-step explanation:

This is because the arrow is moving down the number line

Answer:

5 Hours

Step-by-step explanation:

Bob needs atleast 4 hours to do his work

Ted needs atleast 6 hours

Bob is going to help ted speed up a little

2.4 and 2.1 are to fast because bib needs 4 hours and ted needs 6 so the meet in the middle and get 5.

Hope this helps!

Answer:

7°F

Step-by-step explanation:

We have the following information from the question;

Morning temperature = -10°F

Increase in temperate = 17°F

Afternoon temperature = the unknown

Since;

Increase in temperature = Afternoon temperature - morning temperature

Then;

Afternoon temperature = increase in temperature + morning temperature

Afternoon temperature = 17°F + (-10°F)

Afternoon temperature= 7°F

Answer:

7

Step-by-step explanation:

Your welcome!

Answer:

14.6mm

Step-by-step explanation:

The formula for finding the circumference of a circle is 2πr.

The circumference is 91.688 millimeters inorder to find the radius we have to do the opposite or inverse of multiplication which is division.

So we divide the circumference by 2 and pi which is 3.14 which will give us the radius

r = radius = 91.668 ÷ 3.14 ÷ 2 = 14.6

Answer: its c

Step-by-step explanation:

Answer:

Thx for free points. remember me? actually answer questions.

We cannot calculate the quick ratio for 2017 as the given data does not contain the balance sheet for 2017. However, we can calculate the quick ratio for 2021 using the given information. The quick ratio for 2021 is 1.54.

Quick ratio is a liquidity ratio that calculates a firm's ability to pay off its current liabilities with quick assets. Quick assets are the liquid assets that can be easily converted into cash within 90 days.

Quick ratio formula:

Quick ratio = (Current assets - Inventories) / Current liabilities

In the given information, we have the following details for the year 2021: Current assets = Cash + Accounts receivable + Inventory = 280 + 940 + 1725 = $2945 million

Current liabilities = Accounts payable = $1435 million

Inventory = $1725 million

Therefore, Quick ratio = (2945 - 1725) / 1435= 1.54 Hence, the quick ratio for 2021 is 1.54.

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Answer:

n = -18/7

Step-by-step explanation:

Represent the number with n.

Then:

n - 6 = -6(n + 4)

Performing the indicated multiplication, we get:

n - 6 = -6n - 24

Combining like terms results in 7n = -18, so n = -18/7

When the coin is tossed, the probability of getting a 95% to 5% split is 0.1128.

Given that:

The number of times the coin is tossed = 260

Probability of success = 95% = 0.95

Probability of failure = 5% = 0.05

The number of times success came is:

x = 0.95 × 260

  = 247

The binomial probability formula can be used to find the required probability.

Here, p = 0.95, q = 0.05, n = 260 and x = 247.

So, the probability is:

P(247) = ²⁶⁰C₂₄₇ (0.95)²⁴⁷ (0.05)²⁶⁰⁻²⁴⁷

           = ²⁶⁰C₂₄₇ (0.95)²⁴⁷ (0.05)¹³

           = 0.1128

Hence, the probability is 0.1128.

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Answer:

28.8 thats what i got

Step-by-step explanation

Answer:

It is 3/4

Step-by-step explanation:

You take the 3/4 out of the 1 and are left with 1/4 and then add that to the 1/2 and you get 3/4

A sample size of 1076 is needed , To calculate the required sample size for estimating a population proportion with a desired margin of error and confidence level, we can use the formula:

n = (\(Z^2\) * p * (1-p)) / \(E^2\)

where:

- n is the required sample size

- Z is the z-score corresponding to the desired confidence level

- p is the estimated population proportion

- E is the desired margin of error

Let's calculate the required sample size for each exercise:

6.15: Margin of error within 25% with 95% confidence.

E = 0.25

Z = 1.96 (corresponding to 95% confidence level)

p is not given, so we can assume a worst-case scenario where p = 0.5 (maximum variability).

Substituting these values into the formula:

n = (1.96^2 * 0.5 * (1-0.5)) / 0.25^2

n ≈ 384.16

Rounding up to the nearest whole number:

n = 385

Therefore, a sample size of 385 is needed.

6.16: Margin of error within +1% with 99% confidence.

E = 0.01

Z = 2.58 (corresponding to 99% confidence level)

p is not given, so we can assume a worst-case scenario where p = 0.5 (maximum variability).

Substituting these values into the formula:

n = (2.58^2 * 0.5 * (1-0.5)) / 0.01^2

n ≈ 6658.08

Rounding up to the nearest whole number:

n = 6659

Therefore, a sample size of 6659 is needed.

6.17: Margin of error within +3% with 90% confidence.

E = 0.03

Z = 1.645 (corresponding to 90% confidence level)

p = 0.3 (estimated population proportion)

Substituting these values into the formula:

n = (1.645^2 * 0.3 * (1-0.3)) / 0.03^2

n ≈ 317.91

Rounding up to the nearest whole number:

n = 318

Therefore, a sample size of 318 is needed.

6.18: Margin of error within +2% with 95% confidence.

E = 0.02

Z = 1.96 (corresponding to 95% confidence level)

p = 0.78 (estimated population proportion)

Substituting these values into the formula:

n = (1.96^2 * 0.78 * (1-0.78)) / 0.02^2

n ≈ 1075.56

Rounding up to the nearest whole number:

n = 1076

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Answer:

The answer is 3/4

Step-by-step explanation:

If the graphs of the linear equations are identical, then there are infinitely many solutions.

If the graphs are not identical, then there are not infinitely many solutions. In this case, there may be either no solutions (lines are parallel but not collinear) or one solution (the lines are not parallel but they intersect).

We have that for the Question, it can be said that this is a way to approach the presentation

Generally we are asked to conduct a research on your car  using  reference

materials and Internet sites

While

Internet sites refers to sites on the net that gives detailed and affirmed information on  used cars

e.g www.cars.com

Now on the slides

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Answer:

B would be the answer because line c goes through a and b. line c would the 180 line. if you subtract 180 with the numbers on lines a and b, they would equal the same.

Option B is right.

What are corresponding angles?

Corresponding angles are those angles formed in the same relative position on different intersections when a pair of lines are crossed by a third line.

Here, if we see the 60° angle, then the opposite angle must be = (180° - 60°) = 120°.

This equal to the given corresponding angle , which is also 120°.

We know, if the corresponding angles of a pair of lines are equal, then the pair of lines must be parallel.

Hence, Option B is correct.

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Answer:

-18

Step-by-step explanation:

\(\frac{2}{3}n=-12 \\ \\ \frac{3}{2} \cdot \frac{2}{3}n=\frac{3}{2}(-12) \\ \\ n=-18\)

Answer:

About 2.569 seconds

Step-by-step explanation:

To solve this problem, you can separate it into two half parabolas. The beginning part is initial upward rising. To calculate the amount of time that this part of the dive takes, you can use the formula \(v_f=v_o+at\), where \(v_f\) is the final velocity, \(v_o\) is the initial velocity, a is the acceleration due to gravity, and t is the amount of time it takes. You know that the final velocity is 0, since the diver is reaching the terminal of their dive. Therefore, you can set up the following equation (assuming that the acceleration due to gravity is 32ft/s^2):

\(0=5+(-32)t\)

\(t=5/32\) seconds

To find the height that this indicates the diver has risen, you can plug this time into the following formula: \(d=v_o t+\frac{1}{2}at^2\)

\(d=5(5/32)+\frac{1}{2}\cdot 32\cdot (5/32)^2\approx 1.172\) feet

For the second part, you can use the equation \(d=v_o t+\frac{1}{2}at^2\) again. Since the initial velocity for this part is 0, you can set up the following equation:

\(92+1.172=\frac{1}{2}\cdot 32 \cdot t^2\)

\(t \approx 2.413\)

Adding this to the time that the first part of the dive takes, you get a total of about 2.569 seconds. Hope this helps!

This statement is true, as the test statistic represents the number of standard deviations between the observed sample proportion and the claimed value (po) under the null hypothesis.

- The large value of the test statistic means that our observed data are not surprising when the null hypothesis is true. This statement is false. A large test statistic implies that the observed data is surprising when the null hypothesis is true, which means there is evidence against the null hypothesis.
- The researcher should fail to reject the null hypothesis. This statement is false. A large test statistic suggests evidence against the null hypothesis, so the researcher should reject the null hypothesis in favor of the alternative hypothesis.

- When the null hypothesis is true, the test statistic comes from a standard normal distribution. This statement is true, as the test statistic follows a standard normal distribution when the null hypothesis is true.
- There is a 4.318% chance that the alternative hypothesis is true. This statement is false. The test statistic does not directly provide the probability of the alternative hypothesis being true. Instead, we can use the test statistic to calculate the p-value, which represents the probability of obtaining a test statistic as extreme as the observed one, assuming the null hypothesis is true.

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Answer:

D. The money that Kai started with before he mowed any lawns.

Step-by-step explanation:

We Know

The equation is y = mx + b

The x represents the number of lawns that Kai mows.

What does the y-intercept represent in this equation?

The y-intercept is when the x = 0, meaning the y-intercept is the amount of money he has when mowing 0 lawn. So, the answer is D.

Answer:

The Answer is D

Step-by-step explanation:

Answer:

the slope intercept equation for this line would be y = x - 8

Step-by-step explanation:

the slope of the line is 1 so you dont have to include it in the equation and it crosses the y line at -8 so the y-intercept is -8

Answer:

y= x-8

Step-by-step explanation:

Answer:

The numbers are 9 and 15.

Step-by-step explanation:

The relationship between LCM and HCF of two numbers is

HCF × LCM = product of numbers

now

3 × 45 = 135

now 9 and 15 are the numbers having LCM 45 and HCF 3 and their product is 135.

The cumulative frequency distribution indicates the total number of data items with values below the class's upper limit.

Cumulative frequency analysis examines how frequently values of a phenomena occur that are less frequent than a reference value. The phenomenon could depend on time or place. Another name for cumulative frequency is frequency of non-exceedance. Each frequency from a frequency distribution table is added to the total of its predecessors to determine the cumulative frequency. Since all frequencies will have previously been added to the prior total, the final result will always be equal to the sum of all observations. The quantity of an element in a set is referred to as the element's frequency. The accumulation of all earlier frequencies up to the present time is another definition for cumulative frequency.

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a. There are 2 cycles in the graph.
b. The period of the graph is 360 degrees.
c. The amplitude of the graph is 2.


a. To determine the number of cycles in the graph, we need to count the number of complete repetitions of the pattern. In this case, there are 2 complete repetitions, so there are 2 cycles.

b. The period of a sine graph is the distance it takes to complete one full cycle. In this graph, one full cycle is completed in 360 degrees, so the period is 360 degrees.

c. The amplitude of a sine graph is the distance from the midline to the maximum or minimum point of the graph. In this case, the amplitude is 2 units. y = 2 sin θ.

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Therefore , the solution of the given problem of expressions comes out to be 24 represents the number of pencils in each pack.

Estimates should be generated using growing, equation, and blocking moving numbers rather than at random. They could only help one another by sharing resources, information, or solutions to issues. A statement of variable may also include formulas, pieces, and notations in addition to numerical calculations like addition, negate, synthesis, and combination. Evaluation and analysis are possible for both sentences and words.

Here,

The algebraic expression can be used to calculate the quantity of pencils the store has available for sale

if it has "n" packs of scented pencils, each having 24 pencils:

=> 24n

where n is the number of packs available, and 24 represents the number of pencils in each pack.

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Answer:

D

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Unit rate consists of at least one 1. the unit rate for this would be 1 slice for $1.25

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