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Kisachek [45]
3 years ago
7

What times what equals 121

Mathematics
1 answer:
AlekseyPX3 years ago
8 0
11 * 11 = 121. The star means multiply btw.
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3 years ago
Find the average rate of change of f(x)=2x-1 from x=-1 to x=2
MrMuchimi

The average rate of change from x = -1 to x = 2 is 2

<u>Solution:</u>

Given function is:

f(x) = 2x - 1

We have to find the average rate of change from x = -1 to x = 2

<em><u>The average rate of change is given as:</u></em>

\text {Average rate of change}=\frac{f(b)-f(a)}{b-a}

<em><u>The average rate of change from x = -1 to x = 2 is given by formula:</u></em>

\text {Average rate of change}=\frac{f(2)-f(-1)}{2-(-1)}\\\\\text {Average rate of change}=\frac{f(2)-f(-1)}{3}

<em><u>Find f(2) and f( - 1)</u></em>

<em><u>Substitute x = 2 in given function</u></em>

f(2) = 2(2) - 1 = 4 - 1 = 3

<em><u>Substitute x = -1 in given function</u></em>

f( - 1) = 2(-1) - 1 = -2 - 1 = -3

<em><u>Substitute the values in above formula,</u></em>

\text {Average rate of change}=\frac{3-(-3)}{3}=\frac{6}{3}=2

Thus average rate of change from x = -1 to x = 2 is 2

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3 years ago
What is the solution to the following equation?<br> x+(-21) = 8
UNO [17]
Correct answer is 13
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The answer is B.

Step-by-step explanation:

Given that the fixes amount is $25 per month. In order to find the total cost, C, you have to multiply $25 with the number of months.

C = 25m

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Help help HELLLP help help help
m_a_m_a [10]

Answer:

If you use the 3x to the 2y is will make more sense if u turn them into numbers instead of letters cause letters dont make much sense somtimes.

Step-by-step explanation:

6 0
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