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Dmitry_Shevchenko [17]
3 years ago
9

Paige launched a ball using a catapult she built. The height of the ball (in meters above the ground) ttt seconds after launch i

s modeled by h(t)=-5t^2+40th(t)=−5t 2 +40th, left parenthesis, t, right parenthesis, equals, minus, 5, t, squared, plus, 40, t Paige wants to know when the ball will hit the ground. 1) Rewrite the function in a different form (factored or vertex) where the answer appears as a number in the equation. h(t)=h(t)=h, left parenthesis, t, right parenthesis, equals 2) How many seconds after launch does the ball hit the ground? seconds
Mathematics
1 answer:
agasfer [191]3 years ago
5 0

Answer:

1) Factor form : h(t)=-5t(t-8)

2) 8 second after launch.

Step-by-step explanation:

The height of the ball (in meters above the ground) t seconds after launch is modeled by

h(t)=-5t^2+40t

To find the time when ball hit the ground, we need to find the factor form of the given function.

h(t)=-5t(t-8)

When ball hi the ground, then height of the ball from the ground is 0.

h(t)=0

-5t(t-8)=0

Using zero product property, we get

-5t=0\Rightarrow t=0

t-8=0\Rightarrow t=8

Ball hit the ground at t=0 and t=8. It means ball hit the ground in starting and 8 second after launch.

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Answer:

A. 18÷2/9

Step-by-step explanation:

A. 18÷2/9

B. 18×2/9

C. 2/9÷18

D. 9/2÷18

Let

Total length of box = 18 inches

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Step-by-step explanation:

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<em>Let </em><em>the </em><em>smaller </em><em>number </em><em>be </em><em>y </em>

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Answer:

Please check the explanation.

Step-by-step explanation:

a)  How much will you have at the middle of the first year?

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Using the formula

A\:=\:P\left(1+\frac{r}{n}\right)^{nt}

substituting the values

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