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3 years ago

Convert 71.9% to a decimal. a. 0.00719 b. 0.719 c. 7.19 d. 0.0719

Mathematics

2 answers:

alexandr1967 [171]3 years ago

8 0

Just move the decimal two places over so B)0.719

wlad13 [49]3 years ago

6 0

It's .719 because you move the decimal to the left two times

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Step-by-step explanation:

Given:

Initial speed of the car ( $v_0$ ) = 40 ft/sec

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Final speed of the car ( $v_x$ ) = 0 ft/sec

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$\int\limits^0_{40} {v} \, dv=\int\limits^x_0 {-10} \, dx\\\\\left [ \frac{v^2}{2} \right ]_{40}^{0}=-10x\\\\-10x=\frac{0}{2}-\frac{1600}{2}\\\\10x=800\\\\x=\frac{800}{10}=80\ ft$

Therefore, the car travels a distance of 80 feet before stopping.

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