Solve the problem.A satellite dish has a parabolic cross section and is 8 feet deep. The focus is 4 feet from the vertex. Find the width of the satellite dish at the opening. Round your answer to the nearest foot.
A. 25 ft
B. 27 ft
C. 31 ft
D. 23 ft
Answer: D
Mathematics
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Solve the problem.Jack is currently driving into a headwind (17% decrease). If his normal mileage is 35 mpg, what will his car's mileage be in the headwind? Round your answer to the nearest tenth.
A. 52 mpg B. 35 mpg C. 29.1 mpg D. 7.3 mpg
Mathematics
Find the sum.18 + 6 + 2 + 
+ . . .
A. 27 B. 26 C. - 9 D. Does not exist
Mathematics
Find the standard form of the parabola with the given characteristic and vertex at the origin. vertical axis and passes through point ( 3, -3 ).
a. 
b. 
c. 
d. 
e. 
Mathematics
Let U = {q, r, s, t, u, v, w, x, y, z}, A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. Find the indicated set.(
)
A. {q, s, t, u, v, w, x, y} B. {t, v, x} C. {s, u, w} D. {r, t, u, v, w, x, z}
Mathematics