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3 years ago

PLEASE HELP AND ANSWER RIGHT AWAY! I'M TERRIBLE AT MATH!

1 answer:

7 0

$1 \frac{1}{2} = \frac{3}{2}\\\\2 \frac{1}{2} = \frac{5}{2}\\\\\\\\\frac{3}{2} \times \frac{5}{2} = \frac{3\times 5}{2\times 2} = \huge{\boxed{\frac{15}{4}=3\frac{3}{4}}}$

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3 years ago

Can someone help me and explain? I will mark brainlest. ♡

Sedbober [7]

Answer:

$p'(4) = -3$

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Step-by-step explanation:

For p'(4):

$p(x) = f(x)g(x) \\ p'(x) = \frac{d}{dx}(f(x)g(x)) \\ p'(x) = f'(x)g(x) +f(x)g'(x)$

$p'(4) = f'(4)g(4) + f(4)g'(4) \\ p'(4) = (-1)(3) +(7)(0) \\ p'(4) = -3$

For q'(8):

$q(x) = \frac{f(x)}{g(x)} \\ q'(x)= \frac{d}{dx}(\frac{f(x)}{g(x)}) \\ q'(x) = \frac{f'(x)g(x) -f(x)g'(x)}{{g(x)}^2}$

$q'(8) = \frac{f'(8)g(8) -f(8)g'(8)}{{g(8)}^2} \\ q'(8) = \frac{(2)(2) -(6)(\frac{1}{2})}{{2}^2} \\ q'(8) = \frac{4 -3}{4} \\ q'(8) = \frac{1}{4}$

4 0

4 years ago

Read 2 more answers