Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 16
A. 8a
B. a4
C. 4a
D. ab
Answer: C
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Solve.The equation ? = cos-1 (R/Z) gives the phase angle between R and Z in an AC circuit. Find ? if R = 40 ohms and Z = 50 ohms.
A. 36.9° B. 143.1° C. 0.7° D. 53.1°
Provide an appropriate response.Show that the arc length of one petal of the rose 
is given by 2
and use this formula to help make a conjecture about the limit of such arc lengths as 
What will be an ideal response?
Add the polynomials. Express your answer in standard form.(4x2 - xy - y2) + (x2 + 9xy + 11y2)
A. 3x2 - 10xy - 12y2 B. 5x2 + 8xy + 10y2 C. 5x2 + 10xy + 12y2 D. 4x2 + 9xy + 11y2
Find the intercepts of the function f(x).f(x) = x3 + 6x2 - x - 6
A. x-intercepts: 1, 2, -3; y-intercept: -6 B. x-intercepts: -1, 2, 3; y-intercept: -6 C. x-intercepts: 1, -1, 6; y-intercept: -6 D. x-intercepts: 1, -1, -6; y-intercept: -6