Solve.The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming railroad ties has a rise of 50 feet for every 100 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.
A. 20%
B. 55%
C. 50%
D. 0.5%
Answer: C
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Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = 7x20 - 9x14 - 4x11 + 2x2 - 3x
A. 1 or 3 positive; 0 or 2 negative B. 3 positive; 2 negative C. 1 or 3 positive; 1 or 3 negative D. 0 or 2 positive; 0 or 2 negative
Use the information below to determine the indicated set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}(A ? B)'
A. {r, s, t, u, v, w, x, z} B. {t, v, x} C. {r, t, v, x} D. {s, u, w}
Approximate 
using a Reimann sum with n = 4 .
What will be an ideal response?
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.I = prt; I = 162, p = 300, r = 0.09
A. 6 B. 43.74 C. 4374 D. 0.6