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krok68 [10]
3 years ago
13

In the expression (x^2 + 3), the base is X 2 3

Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

Hey!

-----------------------------------------------

Answer:

3

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Explanation:

Commonly the base of an equation is known as a Dec or 10. Typically in an equation the base is a number between 0 to 9. The only option that is a base is 3!

-----------------------------------------------

Hope This Helped! Good Luck!

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If f(x)=2^x-1 and g(x)= x^2-1, determine the value of (f o g)(3)
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Answer: 4

Step-by-step explanation:

( f o g ) (3) means f(g(3)) so...

First: plug 3 into g(x) = x^ (2-1)

3^ (2-1) is 3^1 = 3

Next: plug 3 into f(x)= 2^(x-1)

2^(3-1) is 2^(2) > 2×2 = 4

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Kevin will take 4 math tests this term. All of the tests are worth the same number of points. After taking the first 3 tests, hi
Makovka662 [10]

Answer:

Kevin needs 96 points on his last test to raise his mean test score to 90 points.

Step-by-step explanation:

we know that

The mean score is the total of all scores divided by the total number of tests.

Let

x_1 ----> the score in the first math test

x_2 ----> the score in the second math test

x_3 ----> the score in the third math test

x_4 ----> the score in the fourth math test

we have

After taking the first 3 tests, his mean test score is 88 points

so

\frac{x_1+x_2+x_3}{3} =88

x_1+x_2+x_3=264 ----> equation A

How many points does he need on his last test to raise his mean test score to 90 points?

so

\frac{x_1+x_2+x_3+x_4}{4} =90

x_1+x_2+x_3+x_4=360 ----> equation B

substitute equation A in equation B

264 + x_4 = 360

solve for x_4

x_4 = 360-264

x_4 = 96

Therefore

Kevin needs 96 points on his last test to raise his mean test score to 90 points.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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