Solve.x3 + 5x2 - x - 5 = 0
A. x = - 5, 5
B. x = 25
C. x = 1, - 5, 5
D. x = -1, 1, - 5
Answer: D
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Classify the random variable as either discrete or continuous.The cost of 4 oranges priced at $1.94 per dozen
A. Continuous B. Discrete
Solve the problem.An electron beam is made to perform a repeated unidirectional sweep across a phosphor-coated screen by a time-periodic sweep voltage, V, given asV(t) = 2t 0 ? t < 2?Find ao (if it is not zero), two nonzero cosine terms (if they exist), and two nonzero sine terms (if they exist) of the Fourier series for the time-dependent voltage.
A. V(t) = 2? - 2
B. V(t) = ? - (2 sin t - sin 2t - ...)
C. V(t) = 2? - 4
D. V(t) = ? - 2
Perform the indicated operations.5
+ 
A. -18 B. -42 C. 18 D. 42
Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.
- 
= 
A. 7 B. No solution C. -3 D. 3