3 years ago

The domain for f(x) and g(x) is the set of all real numbers.

Mathematics

1 answer:

iogann1982 [59]3 years ago

6 0

Answer:

Step-by-step explanation:

note (f - g)(x) = f(x) - g(x) = 3x + 5 - x²

hence (f - g)(x) = - x² + 3x + 5 ← in standard form → D

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Frank weighs 160 pounds and is on a diet to gain two pounds a week so that he can make the football team. John weighs 208 pounds

gladu [14]

Answer: If Frank and John can meet these goals with their diets , they will weigh same after 9.6 weeks and they will weigh 179.2 pounds.

Step-by-step explanation:

Let x = Number of weeks.

As per given question ,

Weight of Frank after x weeks = 160+2x (pounds)

Weight of John after x weeks = 208-3x (pounds)

When Weight of Frank= Weight of John

$\Rightarrow\ 160+2x= 208-3x$

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$\Rightarrow\ 5x= 48\Rightarrow\ x=\dfrac{48}{5}=9.6$

Weight of Frank after 9.6 weeks = 160+2(9.6) = 179.2 pounds

Weight of John after 9.6 weeks = 208-3(9.6)=179.2 pounds

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Fred and Stacey both have books to read over the summer. Fred has read 42 pages and Stacey has read 49 pages. What is the

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