2 years ago

What is the value of n ?

Mathematics

1 answer:

tino4ka555 [31]2 years ago

4 0

Answer:

the answer to this question is n=5

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If f(x)=-4x^2-6x-1 and g(x)=-x^2-5x+3, fine (f-g)(x)

NeX [460]

Answer:

$\large\boxed{(f-g)(x)=-3x^2-x-4}$

Step-by-step explanation:

$(f-g)(x)=f(x)-g(x)$

$f(x)=-4x^2-6x-1,\ g(x)=-x^2-5x+3\\\\(f-g)(x)=(-4x^2-6x-1)-(-x^2-5x+3)\\\\(f-g)(x)=-4x^2-6x-1-(-x^2)-(-5x)-3\\\\(f-g)(x)=-4x^2-6x-1+x^2+5x-3\qquad\text{combine like terms}\\\\(f-g)(x)=(-4x^2+x^2)+(-6x+5x)+(-1-3)\\\\(f-g)(x)=-3x^2-x-4$

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3 years ago

Two girls were competing in 100 meter dash. The first girl ran it in 14.47 seconds. The second girl ran it in 13.88 seconds. How

Butoxors [25]

Answer:

the second girl was. 59 seconds faster than the first girl.

Step-by-step explanation:

14.47-13.88= .59

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3 years ago

Evaluate f(x)=7x+7 when x=-9

stealth61 [152]

Answer:

-56

Step-by-step explanation:

f(x) = 7x + 7

x = -9

We meed to plug in x = -9 into the first equation:

f(-9) = 7(-9) + 7

We can open up the parentheses:

f(-9) = -63 + 7

And then simplify:

f(-9) = -56

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3 years ago

If 0.22... < x <33 , which of the following could be the value of x?

masha68 [24]

Answer:

Step-by-step explanation:

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5:8 Hope this helps!!

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2 years ago