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2 years ago

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An object is propelled vertically upward with an initial velocity of 84 feet per second. The height h (in feet) of the object af

ter a seconds is given by h(t)=-16+ 76t. After how many seconds will the object strike the ground?

1 answer:

Ray Of Light [21]2 years ago

7 0

Answer:

gh

Step-by-step explanation:

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Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

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convert mixed number to an improper fraction

$5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours$

so

$x=\frac{21}{4}\ hours$ -------> equation A

$y=\frac{1}{2}x$ ------> equation B

Substitute equation A in equation B

$y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours$

convert an improper fraction to a mixed number

$\frac{21}{8}\ hours=2.625=2+0.625=2+\frac{5}{8}=2\frac{5}{8}\ hours$

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$2\frac{5}{8}\ hours$

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Answer:

Step-by-step explanation:

Point-slope equation for line of slope m that passes through (x₀,y₀):

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About three years. Hope it helps!

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