Find the area of the shaded region. (Assume that given measurements are exact, and round approximate answers to the nearest tenth of a square unit.)
?
?
A. 7.1 dm2
B. 9 dm2
C. 2.25 dm2
D. 2.3 dm2
E. 28.3 dm2
Answer: A
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Simplify.(x8y)2
A. x10y B. x16y2 C. x16y D. x10y3
Find the function value.Find f(x - 2) when f(x) = 
.
A. 
B. 
C. 
D. 
Approximate to the nearest hundredth.2 ± 
A. 5.00, -1.00 B. 4.65, -0.65 C. 2.65, -2.65 D. 9.00, -5.00
An object of mass m (in grams) attached to a coiled spring with damping factor b (in grams per second) is pulled down a distance a (in centimeters) from its rest position and then released. Assume that the positive direction of the motion is up and the period is T (in seconds) under simple harmonic motion. Develop a model that relates the distance d of the object from its rest position after t seconds.m = 30, a = 10, b = 0.55, T = 6
A. d = -10e-0.55t/60 cos 
B. d = -10e-0.55t/60 cos 
C. d = 10e0.55t/60 cos 
D. d = 10e-0.55t/60 cos 