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motikmotik
3 years ago
11

If h(x) = x – 7 and g(x) = x2, which expression is equivalent to mc022-1.jpg?

Mathematics
2 answers:
damaskus [11]3 years ago
8 0
<span>the answer:
the full question is as follow:

If h(x) = x – 7 and g(x) = x2, which expression is equivalent to (g*h)(5)?

A (5 – 7)2,
B (5)2 – 7,
C (5)2(5 – 7),
D (5 – 7)x2

first, the main rule of the product between two functions g and h is

g(x)*h(x)= (g*h)(x)

</span>h(x) = x – 7 and g(x)=x², so (g*h)(x)= g(x)*h(x)=[x²][x – 7 ]= x^3 -7x²

(g*h)(x)= x^3 -7x², therefore, (g*h)(5)= 5^3 -7*5² = -50 = (5)2(5 – 7)

finally, the answer is C (5)2(5 – 7), 
Yuri [45]3 years ago
5 0

Answer:

A. (5-7)2

Step-by-step explanation:

I took an educational guess on edgen. and got this right.

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Let the no be X and Y

acc to ques....

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substituting value from 1 in 2 we get;

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case 1 :

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x = 9-9=0

case 2:

y= -18

x= 9-18 = -9
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