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2 years ago

Help, please. I just need an answer, so if anyone is bored, for the love of god please...

Mathematics

1 answer:

Alla [95]2 years ago

7 0

Answer:B & E

Step-by-step explanation:

We can first rearrange the function to isolate y. Then, we can find the slope as the function is in the form y=mx+b.

$3x-4y=7\\-4y=-3x+7\\y=\frac{3}{4}x-\frac{7}{4}$

Since parallel lines have the same slope, we can put the slope of 3/4 into the point slope form to get the answer.

For reference, the point-slope form is $y-y_1=m(x-x_1)$

$y+2=\frac{3}{4}(x+4)\\y+2=\frac{3}{4}x+3\\y=\frac{3}{4}x+1$

The first line is found in option E, so option E is one of the correct options.

We can also move the x to the other side, as two of the 5 options have both variables on the left (B and C).

$-\frac{3}{4}x+y=1$

If we multiply the whole equation by -4, we can get rid of the fraction.

$-4(-\frac{3}{4}x+y)=-4(1)\\3x-4y=-4$

Hence, option B is also correct.

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imagine you live only one mile from work and you decide to walk. if you walk four miles per hour, how long will it take you to w

fiasKO [112]

Answer:the distance to work is 1 mile and you can walk at 4 miles per hour, then you can walk 1 mile in ¼ hr = 15 minutes

Step-by-step explanation:

Dylan,

If the distance to work is 1 mile and you can walk at 4 miles per hour, then you can walk 1 mile in ¼ hr = 15 minutes.

To set up the "equation" think about it this way: (1 mile/ t) = (4 mile/ 1 hr)

so 1/t = 4/1 hr

now multiply both sides by t to get 1 = t·(4/1 hr), next divide both sides by (4/1 hr)

t = 1/(4/ 1 hr) = 1 hr/4 = ¼ hr = 15 min.

8 0

3 years ago

Read 2 more answers

In 2016, there were about 36 million teenagers (ages 13-17) in the United States. They each sent an average of 850 text messages

wel

Answer:

256

Step-by-step explanation:

6 0

3 years ago

Find the measure of RPQ

nikklg [1K]

Answer:

Step-by-step explanation:

<SRQ = 270 degrees

<RPQ is just 31 degrees short of that amount.

<RPQ = <SRQ - 31

<RPQ = 270 - 31

<RPQ = 239

5 0

3 years ago

Find all the real cube roots of each number. -64

Masteriza [31]

Every number has three cube roots.

The only real cube root of -64 is -4 .

The other two cube roots of -64 are a pair of complex conjugates.
I'm too lazy to calculate them right now, and you didn't ask for them
anyway.

3 0

4 years ago

Read 2 more answers

For a population with µ = 80 and σ = 20, the Sampling distribution of the Mean, based on n = 16 will have an expected value of t

allsm [11]

Answer:

Will have an expected value of the mean = 80 and a standard error of the mean = 5

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\mu = 80, \sigma = 20$

n = 16

So the mean is 80 and the standard deviation is $s = \frac{20}{\sqrt{16}} = 5$

Will have an expected value of the mean = 80 and a standard error of the mean = 5

6 0

3 years ago

Help, please. I just need an answer, so if anyone is bored, for the love of god please... ​

Help, please. I just need an answer, so if anyone is bored, for the love of god please...