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enyata [817]
3 years ago
13

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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Determine the unit rate of the following.<br> 240 hours of homework in 8 weeks.
astra-53 [7]

Answer: 30\ \frac{hours}{week}

Step-by-step explanation:

In order to solve this exercise it is important to remember that a "Rate" is defined as a ratio that compares two different but related quantities.

Then, "Unit rate" tell us how many units of the first  quantity corresponds to one unit of the second quantity. Therefore, the second quantity is equal to 1.

According to the information given in the exercise, you know that the number of hours of homework in 8 weeks is 240 hours.

Then, in order to determine the Unit rate (the number of hours per week), you need to divide 240 hours by 8 weeks.

Through the procedure explained above, you get the that the number of hours per week is the following:

unit\ rate=\frac{240\ hours}{8\ weeks}\\\\unit\ rate=30\ \frac{hours}{week}

(Notice that it is 30\ hours\ per\ week)

5 0
3 years ago
Helpppp meeee lollllll idkkk what to dooooo
kenny6666 [7]

Step-by-step explanation:

=0.2(y+2)

=0.2(y)+0.2(2)

=0.2y+0.4

hope it help u..

6 0
3 years ago
Please help!! Will mark Brainliest!!! 19 points
MA_775_DIABLO [31]
76 is right
4 \sqrt{1611391}
8 0
4 years ago
(8 ^ 4 * 9 ^ 5)/(16 ^ 2 * 27 ^ 3)<br>help needed plzzzzzz helppppp ​
Roman55 [17]

Answer:

answer is 48

Step-by-step explanation:

simplified after exponents.

4,096 x 59,049/ 256 x 19,683

simplified after multipled

241,864,704/5,038,848

= 48

6 0
3 years ago
What is the circumference of a circle whose radius is 20 feet? Leave answer in terms of π.
kondor19780726 [428]
The circumference of the circle is 40π. Hope it help!
7 0
4 years ago
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