Rewrite the given expression as a single logarithm. Assume that all variables are defined in such a way that variable expressions are positive and bases are positive numbers not equal to 1.logw (x2 - 25) - logw (x - 5)
A. 
B. logw (x2 - 25)(x - 5)
C. logw 
D. logw (x + 5)
Answer: D
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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
Solve the system of four equations in four unknowns using matrices. x + 3y - 2z - w = 16 4x + y + z + 2w = 10-3x - y - 3z - 2w = 1 x - y - 3z - 2w = 5
A. (0, 5, -9, 6) B. (-1, 3, -5, 6) C. (16, 10, 1, 5) D. (1, 3, -5, 4)
Solve the problem.A certain mathematics test consists of 20 questions. Goldie decides to answer the questions without reading them. In how many ways can Goldie fill in the answer sheet if the possible answers are true and false?
A. 40 B. 400 C. 1,048,576 D. 190
Simplify the complex fractions.
A. 
B. 
C. 
D. 