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romanna [79]
3 years ago
8

Which is the variable 300 + 200 over x

Mathematics
1 answer:
alexandr1967 [171]3 years ago
4 0

Answer:

x is the variable

Step-by-step explanation:

Given the following equation:

\frac{300+200}{x}

The term variable is basically a symbol or a letter that will change throughout the completion of a equation. In this case we are solving for x which means x is the letter/symbol that will change throughout the completion of this equation which means "the letter x is the variable."

Hope this helps.

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Mia read x pages in the book. Laurie read 1/3 more than that
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Step-by-step explanation:

Laurie read x+1/3 pages.

Mia read x pages.

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3 years ago
To estimate μ, the mean salary of full professors at American colleges and universities, you obtain the salaries of a random sam
GenaCL600 [577]

Answer:

<h3>73220±566.72</h3>

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = xbar ± z*s/√n

xbar is the sample mean =  $73,220

z is the z score at 99% CI = 2.576

s is the standard deviation = $4400

n is the sample size = 400

Substitute the given values into the formula;

CI = 73,220 ± 2.576*4400/√400

CI = 73,220 ± 2.576*4400/20

CI = 73,220± (2.576*220)

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Hence a 99% confidence interval for μ is 73220±566.72

5 0
3 years ago
Which is the graph of f(x)=1/4(4)x
Dovator [93]

Answer:

Please, see attached picture

Step-by-step explanation:

We can easily solve this question by using a graphing calculator or any plotting tool.

The equation is

f(x) = (1/4)*(4)^(x)

Which is an exponential function, that grows rapidly to infinity as x increases.

8 0
3 years ago
Taking a final exam rn and im stuck on this question, pls help ;-;
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False true true.....
5 0
3 years ago
Read 2 more answers
ABCD is a parallelogram.
kow [346]

Opposite sides of a parallelogram are equal lengths, so ...

... AB = CD

... 6x +30 = 2y -10

and

... BC = AD

... 2x -5 = y -35

_____

The equations can be put in standard form to get

... 3x -y = -20

... 2x -y = -30

Subtracting the second from the first, we get

... x = 10

Solving for y, we have

... y = 2x+30 = 2·10 +30 = 50

The values of x and y are x=10, y=50.

_____

AB = 6x+30 = 90

BC = 2x-5 = 15

3 0
4 years ago
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