Solve the problem.Suppose that a household appliance draws a current represented by the relation  where t is time measured in seconds. The power consumed by the appliance is  where R is a constant. Take R to be 18 and graph the power in  by  and use an identity to write the expression for the power in the form 

src="https://sciemce.com/media/4/ppg__ads0528191716__f1q285g5.jpg" alt="" style="vertical-align: -4.0px;" /> where a, k, and d are constants.



A. P = 729 cos(240?t) + 729
[0, 0.04, 0.01] by [-200, 2000, 200]

B. P = 729 cos(120?t) + 729
[0, 0.04, 0.01] by [-200, 2000, 200]

C. P = -729 cos(240?t) + 729
[0, 0.04, 0.01] by [-200, 2000, 200]

D. P = 1458 cos(240?t) + 1458
[0, 0.04, 0.01] by [-200, 2000, 200]

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Answer: A

Mathematics

Without using a calculator, determine whether the first number is divisible by the second number.Is 210,270 divisible by 30?

A. Yes B. No

Solve the problem.A satellite dish is shaped like a paraboloid of revolution. The signals that emanate from a satellite strike the surface of the dish and are reflected to a single point, where the receiver is located. If the dish is 8 feet across at its opening and is 2 feet deep at its center, at what position should the receiver be placed?

What will be an ideal response?

Factor the trinomial that is a perfect square. If it is not a perfect square, respond "not a perfect square."x2 - 4x + 16

A. (x - 4)2 B. (x + 4)(x - 4) C. not a perfect square D. (x + 4)2

Use the graph of y = g(x) to answer the question.Findg(x).

A. 3 B. 0 C. 1 D. does not exist