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3 years ago

No links please, PLEASE HELP NOW!!!

Mathematics

1 answer:

Fiesta28 [93]3 years ago

3 0

Answer:

Below in bold.

Step-by-step explanation:

(A). s = (1/3)t^3 - 3t^2 + 9t + 7

To find the velocity at time t we find the derivative:

V = ds/dt = 3*1/3 t^2 - 3*2t + 9

V = t^2 - 6t + 9,

Acceleration is found by finding the derivative of the velocity:

A = 2t - 6.

(B). Acceleration after 1 second = 2(1) - 8

= -6 ms^-2.

(C). When V = 0

acceleration = 0 ms^-1.

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Answer:

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3 years ago

Which equation represents a linear function with a slope of 12 and a y-intercept of -15? A. Y=−15x+12 B. Y=−x2+15 C. Y=x2−15 D.

Naddik [55]

Answer:

y = 12x-15

Step-by-step explanation:

The equation of a line is given by :

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Here, the slope is 12 and y-intercept is -15.

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y = 12x+(-15)

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3 years ago

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Zina [86]

Answer:

m < 38

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3 years ago

Which angles are complementary?

Charra [1.4K]

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4 years ago

At a local preschool, there is a ratio of three boys two every four girls. If there are 245 total preschoolers enrolled , Then h

White raven [17]

A ratio can be written in three different ways: 3 to 4, 3:4, and 3/4

What does this mean? It means that for every group of 7 students (3+4) there are 3 boys and 4 girls. And how many groups do we have? We have:

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3 years ago