Solve the problem.The amplitude of an alternating voltage V = V(t) is sometimes indicated by giving the rms (root mean square) voltage, which is the square root of the average value of V2. Find the rms voltage if
over the period
to t = 1/60 s.
A. 277.1 V
B. 0.1 V
C. 25,600.0 V
D. 160.0 V
Answer: A
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For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = ; g(x) =
;
Find f + g.
A. (f + g)(x) = ; (-?, 0) ? (0, ?)
B. (f + g)(x) = ; (-?,
?
, ?)
C. (f + g)(x) = ; (-?,
?
, ?)
D. (f + g)(x) = ; (-?,
?
, ?)
In the following table, Y1 is defined by a rational expression of the form . Use the table to find the values of p and q.
A. p = 4; q = 1 B. p = 1; q = 4 C. p = 1; q = 0 D. p = 0; q = 1
Identify the type of graph. +
= 1
A. The graph is a circle with center at (7, 7) . B. The graph is a circle with center at (0, 0) . C. The graph is an ellipse with foci on the x-axis . D. The graph is a circle with center at (49, 49) .
Find the indicated sum.Find the sum of the first 785 even positive integers.
A. 616,225 B. 617,010 C. 615,440 D. 617,796