3 years ago

ILL MARK BRANLIEST !!! easy help

Mathematics

1 answer:

Anna35 [415]3 years ago

4 0

Answer:

i think its 62

Step-by-step explanation:

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2 divided by square root 13 plus square root 11

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1 year ago

If (2y^4z^m)^8 what is m

aksik [14]

M is the exponent of z inside parentheses. In expanded form, the exponent of z is 8m, so m is 1/8 of the exponent of z.

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2 years ago

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The table below shows the distance Chris is located from his school at different times. Time (minutes) Distance (miles) 0 20 3 1

telo118 [61]

Answer:

20 minutes

Step-by-step explanation:

x is 0 in the graph and y is 20

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2 years ago

Solve and explain <br> 4 20 <br> ___ = _____<br> x - 5 x - 7

Degger [83]

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2 years ago

Someone please help with parts a b c and d. I will mark brainlest!!!

maria [59]

Answer:

A. 49 feet

B. 66 feet (round to the nearest foot)

C. 4 seg

Step-by-step explanation:

A. What is the height of the ball after 3 seconds?

For $t=3 seg$

$h(3)=-16(3)^{2} +63(3)+4$

$h(3)=-144+189+4\\h(3)=-144+193\\h(3)=49 feet$

B. What is the maximum height of the ball? round to the nearest foot

$h(t)=-16(t)^{2} +63(t)+4\\h'(t)=-32(t) +63\\$

then

$-32(t)+63=0\\t=\frac{-63}{-32}\\t=1.969seg$

For $t=1.969seg$

$h(1.969)=-16(1.969)^{2}+63(1.969)+4\\h(1.969)= 66.016\\h(1.969)=66 feet$

C. When will the ball hit the ground?

The ball will hit the ground when $h(t)=0$

so, $-16t^{2} +63(t)+4=0$

Using the quadratic equation

$t=4seg$

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3 years ago