Solve the problem.A rectangular sign is being designed so that the length of its base, in feet, is 20 feet less than 4 times the height, h. Express the area of the sign as a function of h.
A. A(h) = -20h + 4h2
B. A(h) = -20h + h2
C. A(h) = -20h2 + 2h
D. A(h) = 20h - 2h2
Answer: A
Mathematics
You might also like to view...
Write the expression in terms of sines and/or cosines, and then simplify.
+ 
A. 1 B. 1 + cos2 x C. 1 + sin2 x D. 2 cos2 x
Mathematics
Solve the equation.
?
?
A. 7, -7, 0 B. 49, -49, 0 C. 7, -7, 1 D. 0 E. 7
Mathematics
Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.
+ 5
+ 6
A. 11
B. 28
C. 28
D. 11
Mathematics
Provide an appropriate response.True or False? 
= 
A. True B. False
Mathematics