Find the domain and range of the function.f(x) = 9 sin2 x
A. Domain: (-?, ?); range [-9, 9]
B. Domain: [0, ?); range: [-9, 9]
C. Domain: (-?, ?); range: [0, 9]
D. Domain: [0, 9]; range: (-?, ?)
Answer: C
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Find the limit.
A. - 
B. 0
C. - 
D. ?
R1 = 100 ê, R2 = 22 ê, and R3 = 470 ê. Find RT.
a. 10.00
b. 26.42
c. 17.36
d. 263.3
e. 790.0
Find all real numbers that satisfy the equation. Round approximate answers to 2 decimal places.3 = 5 cos(x) + 2
A. 0.98 + 2k? or 5.30 + 2k? where k is any integer B. 1.37 + k? or 4.91 + k? where k is any integer C. 1.37 + 2k? or 7.65 + 2k? where k is any integer D. 1.37 + 2k? or 4.91 + 2k? where k is any integer
Solve the problem.A comet has a nearly circular orbit around a star with a radius of 330 million miles and requires 8.24 earth years to complete one orbit. Estimate the orbital speed of the comet in miles per hour. Round to the nearest mile per hour.
A. 689,404 mph B. 252 mph C. 28,725 mph D. 251,632,423 mph