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3 years ago

Someone who knows what theyre doing

Mathematics

2 answers:

umka2103 [35]3 years ago

6 0

Your answer would be y=-4x+(-3)

Ahat [919]3 years ago

5 0

I believe it is -3 because that is where it crosses the y access

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Which expression will result in a solution that is "undefined"?

allochka39001 [22]

Answer:

Step-by-step explanation:

when a number is divided by zero it is undefined

3 0

3 years ago

Alyssas resting heart rate is 50 beats per minute. Her target exercise rate is 325% of her resting rate. What is her target rate

Lady_Fox [76]

The exercise target rate according to the Rate of change is 162.5.

According to the statement

We have to find that the target rate of the exercise.

So, For this purpose, we know that the

Rate of change is used to mathematically describe the percentage change in value over a defined period of time

From the given information:

Alyssas resting heart rate is 50 beats per minute. Her target exercise rate is 325% of her resting rate.

then

The exercise target rate = 325% of 50 beats.

Then

The exercise target rate = 325/100*50

The exercise target rate = 3.25*50

The exercise target rate = 162.5.

So, The exercise target rate according to the Rate of change is 162.5.

Learn more about Rate of change here

brainly.com/question/8728504

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3 0

2 years ago

.this is all the question

Korvikt [17]

Answer:

Answer: 2

Step-by-step explanation:

5 0

3 years ago

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estim

prohojiy [21]

Using the z-distribution, it is found that a sample size of 3,385 is required.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

In this problem, we have a 98% confidence level, hence $\alpha = 0.98$ , z is the value of Z that has a p-value of $\frac{1+0.98}{2} = 0.99$ , so the critical value is z = 2.327.

We have no prior estimate, hence $\pi = 0.5$ is used, which is when the largest sample size is needed. To find the sample size, we solve the margin of error expression for n when M = 0.02, hence: