Solve the equation on the interval [0, 2?).sin2 x + sin x = 0
A. 0, ?, 
, 
B. 0, ?, 
C. 0, ?, 
, 
D. 0, ?, 
, 
Answer: B
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The mean height of kindergartners at an elementary school is 44 inches with a standard deviation of 2 inches. If the heights are normally distributed, use this data to solve the problem. 
What percent of the kindergartners have a height between 42 and 46 inches?
A. 95% B. 68% C. 99.7% D. 34%
Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 900°
A. -1
B. 
C. 0
D. undefined
Solve the problem.A photographer points a camera at a window in a nearby building forming an angle of 42° with the camera platform. If the camera is 52 m from the building, how high above the platform is the window, to the nearest hundredth of a meter?
A. 57.75 m B. 1.11 m C. 46.82 m D. 0.9 m
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 