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ryzh [129]
3 years ago
10

Please Help Me!! I need to know the answer quickly!!

Mathematics
1 answer:
aivan3 [116]3 years ago
8 0
1. A and B
2A. 1
2B. 4
3B. 4
3A. 2y and y
3B.none
3C. 5x and x squared
Not completely sure though
You might be interested in
(15 points) what steps do i take to determine if y+3x^3=9 is linear
Annette [7]

Answer:

Answers are below

Step-by-step explanation:

Step 1: Graph the function

Step 2: Identify the type of function. This can be done by looking the exponents

Step 3: Since the exponent is 3, the function is not linear, but instead a cubic function.

I graphed this equation below.

If this answer is correct, please make me Brainliest.

3 0
3 years ago
Read 2 more answers
A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?
VladimirAG [237]

Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

4 0
3 years ago
Explain why a change from 20 to 40 is a 100% increase, but a change from 40 to 20 is a 50% decrease.
Rainbow [258]

Answer:

Because 20 has to be doubled to become 40. While 40 is twice as much as 20 so you just divide 40 by 20 to get 50%.

Explanation:

20 x 20 = 40 = 100%

40 / 20 = 50%

4 0
3 years ago
Which of the following lines is perpendicular to y= 1/4 x-3 ​? Select all that apply. A. 8x-2y=3 B. y=-4x+6 C. y=4x D. y=4x+9 E.
Natali5045456 [20]

it is A. 8x-2y=3

i hope i helped

4 0
3 years ago
You have $21.15 in your bank account. You make a deposit of
AysviL [449]

The money in account is $36.38.

Let, the current amount in the bank amount is x.

And the amount of money that will be deposited is y.

So, the total amount that will be in the bank can be denoted by x+y.

Given that you have $21.15 in the bank account.

So, value of x = $21.15

The amount you will be depositing in the bank account is $15.23.

So, value of y = $15.23

Hence, the total amount in the bank will be

Already amount in the bank (x) + deposited amount in the bank (y)

So, x +y

$21.15 + $ 15.23

Total amount in the bank = $36.38

Hence, total amount in the bank is $36.38

Learn more about the bank account problems here brainly.com/question/14017594

#SPJ9

8 0
2 years ago
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