Solve the equation on the interval [0, 2?).2 cos2 x + sin x - 2 = 0
A. 
, 
B. 0, ?, 
, 
C. 
, 
D. 
, 
, 
, 
Answer: B
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Use the change of base formula and the properties of logarithms to rewrite the expression as a single logarithm in the indicated base.loge2 x7 + loge3 x15 + loge4 x16, base e
A. ln 
B. 16 ln x
C. 25 ln x
D. ln 
Write an algebraic expression for each quantity using the given variable.The height of a box is 7 inches longer than the width. The length is 2 inches shorter than triple the width. Use the letter w.
A. w = width; w + 7 = height; 3w - 2 = length B. w = width; w + 7 = height; w - 2 = length C. w = width; w - 7 = height; 3w + 2 = length D. w = width; w + 7 = height; 3w + 2 = length
Give the equation of the oblique asymptote, if any, of the function.f(x) = 
A. y = x + 14 B. y = x - 12 C. x = y + 8 D. no oblique asymptote
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. Use the graph to answer the question.
At what time was the temperature the lowest?
A. 9 a.m. B. 6 p.m. C. 1 p.m. D. 10 a.m.