3 years ago

Suppose that the functions g and h are defined for all real numbers as follows:

1 answer:

6 0

(h+g)(x) = 3x + 5 + 6x = 9x + 5Answer

(h - g)(x) = 6x - (3x + 5) = 3x- 5 Answer

(h*g)(x) = 6x(3x + 5) = 18x^2 + 30x

(h*g)(2) = 18(4) + 30(2) = 72 + 60 = 132 Answer

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Alex is twice as big as his brother. Doug is 5 inches taller than Alex

seropon [69]

1) Let 'A' = Alex's Height
A=x^2

2) Let 'D' = Doug's Height
A+5=D

3) D=x^2 + 5

4) A= 24^2 = 576 (inches)
-Alex is 576 inches tall.
D= 576+5
D=581 Inches
-Doug is 581 inches tall.

5) X show's Alex's brother's height. After the height is squared it equals Alex's height.

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Step-by-step explanation:

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Which expression is the best estimate of 1.25+(-2.69)

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