Evaluate the expression using the order of operations.-6 - 

A. -18
B. 18
C. -30
D. 30


Answer: C

Mathematics

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Which of the following can be assumed to be true? ?

A.

?If , then b> c.


B.

?If , then b< c.


C.

?If , then .


D.

?The mean of  is .


E.

?None of the above are true.


Mathematics

Solve the given problem by using Laplace transforms.A 10-H inductor, a 40-?F capacitor, and a voltage supply whose voltage is given by  are connected in series. Find the current as a function of time if the initial charge on the capacitor and the initial current are both zero.

A. i = 5t sin -50t B. i = 5t cos 50t C. i = 5t sin 100t D. i = 5t sin 50t

Mathematics

Identify the number as prime, composite, or neither.54

A. Composite B. Neither C. Prime

Mathematics

Find an equation for the sphere with the given center and radius.Center (0, 0, 8), radius = 5

A. x2 + y2 + 5 z2 - 16z = -39 B. x2 + y2 + 5 z2 + 16z = -39 C. x2 + y2 + z2 + 16z = -39 D. x2 + y2 + z2 - 16z = -39

Mathematics