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3 years ago

The slope of the line y = 1/4x

Mathematics

1 answer:

atroni [7]3 years ago

3 0

Answer:

It is only parallel

Step-by-step explanation:

If you have more problems like this you can use Desmos.

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What is the length of side s of the square shown below?

JulijaS [17]

Answer:

Step-by-step explanation:

in a 30,60,90 triangle the longer leg is rt3 times the value of the shorter leg and the hypotenuse is 2 times greater than the shorter leg.

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3 years ago

Janelys buys milk and apples at the store.

Natali5045456 [20]

Answer:

Each bag costs $4.75

Step-by-step explanation:

41.22 = 3.22 + 8x

38 = 8x

4.75 = x

7 0

2 years ago

Joan has a prescription for 100 capsules.She only have enough money to pay for 1/4 of her prescription.How many capsules will Jo

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Answer:25

Step-by-step explanation:

100 divided by 4 equals 25

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3 years ago

The distance between 2 cities is 7,200 miles. How long will it take a plane that flies at 600 miles h to travel between the 2 ci

maks197457 [2]

Answer:

12 hours

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

You are planning a survey of starting salaries for recent computer science majors. In a recent survey by the National Associatio

nydimaria [60]

Answer:

A sample size of 554 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation is known to be $12,000

This means that $\sigma = 12000$

What sample size do you need to have a margin of error equal to $1000, with 95% confidence?

This is n for which M = 1000. So

$M = z\frac{\sigma}{\sqrt{n}}$

$1000 = 1.96\frac{12000}{\sqrt{n}}$

$1000\sqrt{n} = 1.96*12$

Dividing both sides by 1000:

$\sqrt{n} = 1.96*12$

$(\sqrt{n})^2 = (1.96*12)^2$

$n = 553.2$

Rounding up:

A sample size of 554 is needed.

5 0

2 years ago