3 years ago

Can someone check this for me please 20=2x-5 Answer:12.5

Mathematics

1 answer:

cluponka [151]3 years ago

8 0

Answer:

You are correct

Step-by-step explanation:

I hope this helps

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Answer:

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Step-by-step explanation:

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2 years ago

Find f(3). f(x) = x2 + 5x - 9 A) 7 B) 10 C) 9 D) 15

Lelechka [254]

Answer:

f(3) = 15. Correct: D)

Explanation:

Numeric Value of a Function

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

$f(x)=x^2+5x-9$

It is required to find f(3), or the numeric value of f when x=3. Replace x for 3

$f(3)=3^2+5(3)-9$

$f(3)=9+15-9$

$f(3)=15$

A) Incorrect. f(3) is not 7

B) Incorrect. f(3) is not 10

C) Incorrect. f(3) is not 9

D) Correct. f(3) =15 as found above.

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3 years ago

Please help me with this

zhannawk [14.2K]

Answer: -6, -3, -2, -1, 1, 2, 3, 6

Step-by-step explanation:

NOTES: p is the last term, q is the coefficient of the first term

Determine all of the factors of p and all of the factors of q

Possible rational roots are all of the combinations of p/q for every factor

$\dfrac{p}{q}=\pm \dfrac{6}{1}=\pm \dfrac{1\times 6, 2\times 3}{1}=\pm\dfrac{1}{1}, \pm\dfrac{6}{1}, \pm\dfrac{2}{1}, \pm\dfrac{3}{1}\\\\\\\text{In order from smallest to largest:}\ \large\boxed{-6, -3, -2, -1, +1, +2, +3, +6}$

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2 years ago

A 222-inch pipe is cut into two pieces. One piece is five times the length of the other. Find the length of the shorter piece.

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Is there any options?

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2 years ago

Read 2 more answers

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alexandr1967 [171]

Answer:

okay

Step-by-step explanation:

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2 years ago