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2 years ago

Which expression is equivalent to 2 (14x-37+28x+12.2-5y-17.5)?

Mathematics

1 answer:

ziro4ka [17]2 years ago

7 0

Answer:

A. 84x - 16y - 10.6

Explanation:

$\sf \rightarrow 2(14x-3y+28x+12.2-5y-17.5)$

$\sf \rightarrow 2 (42x-8y-5.3)$

apply distributive method: a(b + c) = ab + ac

$\sf \rightarrow 2 (42x) -2(8y)-2(5.3)$

$\sf \rightarrow 84x -16y-10.6$

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3 years ago

Read 2 more answers

The equation of motion of a particle is s = t3 − 3t, where s is in meters and t is in seconds. (Assume t ≥ 0.) (a) Find the velo

Fynjy0 [20]

Answer:

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Step-by-step explanation:

a) The velocity and acceleration function are obtained by deriving the displacement function once and twice, respectively:

$v(t) = 3 \cdot t^{2} - 3\\a(t) = 6 \cdot t$

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c) The time when velocity is zero is:

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The acceleration is:

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4 years ago