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Varvara68 [4.7K]
4 years ago
9

For f (c)=2x+1 and g(x)=x^2 - 7 find (f-g)(x)

Mathematics
1 answer:
Veronika [31]4 years ago
7 0

Answer:

\large\boxed{D.\ -x^2+2x+8}

Step-by-step explanation:

(f-g)(x)=f(x)-g(x)\\\\f(x)=2x+1,\ g(x)=x^2-7\\\\\text{substitute:}\\\\(f-g)(x)=(2x+1)-(x^2-7)=2x+1-x^2-(-7)=2x+1-x^2+7\\\\=-x^2+2x+(1+7)=-x^2+2x+8

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A Stegosaurus eats six and two fifths big leaves for breakfast and three and one fifth big leaves for lunch. How many leaves did
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9 and 3/5

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Chris has a bag of four apples. Three of the apples are red and one of them is green. He also has two
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HELPPP....PLEASE...........
kogti [31]

Answer:

9 1/3, 12 1/2, 14 3/4

Step-by-step explanation:

I assume the formula you’re working with is A=b*h since nothing says otherwise...

((Patio 1))

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147= 15 3/4*h

You need to isolate your h in order to get the missing number, so you should divide both sides by 15 3/4 OR 63/4 ((15*3—>60+3=63))

Dividing by a fraction is the equivalent of multiplying by its reciprocal... so

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3 0
3 years ago
the ratio of the length of a rectangle to its width is 8 to 5. if the longer side of the rectangle is 20 ft, what is the length
expeople1 [14]
8/5 = 20/x
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answer
<span>length of its shorter side = 12.5 ft</span>
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Answer:

Step-by-step explanation:

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4 0
3 years ago
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