2 years ago

Help a a a a a a a a a a a a a aa a a a a a a a a a a a a a

Mathematics

1 answer:

Ivan2 years ago

7 0

Answer:

b i think please mark as brainllest

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The velocity function of the projectile is obtained by deriving the position function:

$v(t) = -9.8\cdot t + 136$

Now, the velocities after 3 and 15 seconds are, respectively:

$v(3\,s) = -9.8\cdot (3) + 136$

$v(3\,s) = 106.6\,\frac{ft}{s}$

$v(15\,s) = -9.8\cdot (15) + 136$

$v(15\,s) = -11\,\frac{ft}{s}$

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3 years ago

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Step-by-step explanation:

-x+2y=-6

x-2y=6

x=2y+6

substitute in 2x-3y=11 gives us 2(2y+6)-3y=11

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-x+2(-1)=-6

-x=-4

x=4

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3 years ago

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