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Artist 52 [7]
3 years ago
7

Find f(-2) when f(t) = -2t + 3

Mathematics
1 answer:
harina [27]3 years ago
5 0
The answer is seven 
-2times-2 is positive four
Positive four plus three is seven

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

<em>[using calculus] </em>When the function h(t) reaches its maximum value, its first derivative will be equal to zero (the first derivative represents velocity of the ball, which is instantaneously zero). We have h'(t) = -32t + 48, which equals zero when t = 3/2 = 1.5. The ball therefore reaches its maximum height when t = 1.5. To find the maximum height, we need to find h(1.5), which is 64 feet.

<em>[without calculus] </em>This is a quadratic function, so its maximum value will occur at its vertex. The formula for the x-coordinate of the vertex is -b/2a, so the maximum value occurs when t = -48/(2*16), which is 1.5. The maximum height is h(1.5), which is 64 feet.

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3 years ago
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Answer:

y=x+10

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

34 ÷ (14 − 5) × 2

PEMDAS

Parentheses first

34 ÷ (9) × 2

We have no Exponents so

Multiply and Divide from left to right

34/9 *2

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I think it’s infinitely many
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