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3 years ago

Will Mark Branliest!!

Mathematics

1 answer:

alina1380 [7]3 years ago

3 0

Answer:

$13\ weeks$

Step-by-step explanation:

Let

x------> the number of weeks

we know that

$20x\geq 250$ -----> inequality that represent the situation

solve for x

$x\geq 250/20$

$x\geq 12.5\ weeks$

Round to the nearest whole number

$12.5\ weeks=13\ weeks$

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8. Change the fraction 3/4 to a percent. A. 133% B. 75% C.63% D. 34%

elena-s [515]

Answer:

B. 75%

Step-by-step explanation:

multiply the numerator and the denominator by 25. 3*25/4*25=75/100. 3/4=75%.

6 0

3 years ago

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Consider the function f ( x ) = 1 − 4 x 2 on the interval [ − 1 , 3 ] . Find the average or mean slope of the function on this i

Blababa [14]

Answer:

The average slope is 8.

Step-by-step explanation:

Let f be defined on the closed interval [a, b]. The average slope of f between a and b is the quotient

average slope = $\frac{f(b)-f(a)}{b-a}$

To find the average slope of the function $f(x)=1-4x^2$ on the interval [-1, 3] you have to evaluate your function in the interval and then divide by the interval.

So,

$f(-1)=1-4(-1)^2=-3\\\\f(3)=1-4(3)^2=-35$

The average slope is $\frac{f(3)-f(-1)}{3+1}= \frac{-3+35}{3+1}=\frac{32}{4}=8$

4 0

3 years ago

Which equation can be used to solve for in the following diagram?

Ivahew [28]

Answer:

the Answer is 3x+12)+X=180

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3 years ago

Solve and check please i need help

viktelen [127]

Answer:

e = 7.5

Step-by-step explanation:

Hi,

15 = e/0.5

You need to find what e equals. To do that, you need e all by itself. So to get e by itself in this equation, you need to multiply by 1/2 (same thing as 0.5). 15 x 0.5 is equal to 7.5.

To check your work, 7.5/0.5 is equal to 15.

So you know it's correct.

I hope this helps you :)

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3 years ago

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Mumz [18]

Answer:

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