Solve.(7x - 9)(7x - 5) = 0
A. - 
, - 
B. 
, 
C. 
, 
D. 
, 
Answer: B
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Given the matrices A and B, find the matrix product AB.A = 
, B = 
Find AB.
A. 
B. AB is not defined.
C. 
D. 
Solve the problem.Given that the polar equation r = 
models the orbits of the planets, estimate the smallest possible distance between Earth, for which 
and 
and Venus, for which 
and 
A. About 0.4 astronomical units B. About 0.2 astronomical units C. Zero astronomical units D. About 2 astronomical units
The designers of a water park are creating a new slide and have sketched some preliminary
drawings. The length of the ladder is a = 26 feet, and its angle of elevation is 60º (see figure).
?
?
Find the angle of depression 
from the top of the slide to the end of the slide at the ground in terms of the horizontal distance d the rider travels.
?
A. 
B. 
C. 
D. 
E. 
Find all the zeros of the function and write the polynomial as a product of linear factors. ? x4 + 13x2 + 36 ?
A. ±3i, ±2i; (x + 3i)(x - 3i)(x + 2)(x - 2) B. ±3i, ±2i; (x + 3i)(x - 3i)(x + 2i)(x - 2i) C. -3i, -2i; (x - 3i)(x - 3i)(x - 2i)(x - 2i) D. 3i, 2i; (x + 3i)(x + 3i)(x + 2i)(x + 2i) E. ±3i, ±2i; (x + 3)(x - 3)(x + 2i)(x - 2i)