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stepladder [879]
3 years ago
15

the height of a ball thrown in the air is modeled by the equation h(t)=-16t^2+64t, where h(t) represents the height of the ball

in feet and t represents the number of seconds that have passed since the ball was hit. what was the height of the ball after 3 seconds
Mathematics
2 answers:
Sonbull [250]3 years ago
7 0
Plug 3 in for t
h(t) = -16(3)^2 + 64(3)
h(t) = -144 + 192
h(t) = 48 feet
dem82 [27]3 years ago
4 0

Answer:40.5 ft

Step-by-step explanation:

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dybincka [34]

Answer:

standard deviation comes out to be equal to 14.63

Step-by-step explanation:

given numbers,

34, 41, 23, 22, 23, 42, 24, 24, 69, 36

arranging in ascending order

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mean =  \dfrac{22+23+23+24+24+34+36+41+42+69}{10}

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standard deviation =  \sqrt{\frac{\sum (x-\bar{x})^2}{n-1}}

                               =   \sqrt{\frac{1927.6}{10-1}}

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I don't understand this question
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In general, the point
Zanzabum

Answer:

we conclude that when we put the ordered pair (0, a), both sides of the function equation becomes the same.

Therefore, the point (0, a) is on the graph of the function f(x) = abˣ

Hence, option (D) is correct.

Step-by-step explanation:

Given the function

f(x) = abˣ

Let us substitute all the points one by one

FOR (b, 0)

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putting x = b, y = 0

0 = abᵇ

FOR (a, b)

y = abˣ

putting x = a, y = b

b = abᵃ

FOR (0, 0)

y = abˣ

putting x = 0, y = 0

0 = ab⁰

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FOR (0, a)

y = abˣ

putting x = 0, y = a

a = ab⁰

a = a         ∵b⁰ = 1

TRUE

Thus, we conclude that when we put the ordered pair (0, a), both sides of the function equation becomes the same.

Therefore, the point (0, a) is on the graph of the function f(x) = abˣ

Hence, option (D) is correct.

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