Write fractions to represent the shaded and unshaded portions of the figure.
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: C
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Solve the problem.You have 84 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 21 ft, width: 21 ft B. length: 63 ft, width: 21 ft C. length: 42 ft, width: 21 ft D. length: 42 ft, width: 42 ft
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 
, g(x) = 84x2 + 20
B. f(x) = 
, g(x) = 
C. f(x) = 84x2 + 20, g(x) = 
D. f(x) = 
, g(x) = x2
Establish the identity.sin
= 
(cos x + sin x)
What will be an ideal response?
Solve.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 40 mph with a surface area of 33 ft2 experiences a drag of 184.8 N (Newtons), how fast must a car with 38 ft2 of surface area travel in order to experience a drag force of 218.12 N?
A. 38 mph B. 43 mph C. 41 mph D. 46 mph