Find all real values of x such that f(x) = 0.
?
f(x) = x2 - 8x - 20
?
A. x = -10, 2
B. x = -10, -2
C. x = 2, 10
D. x = -2, 10
E. x = -8, 8
Answer: D
Mathematics
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A. (-3, -2) B. (-2, 3) C. (3, -2) D. (2, -3)
Mathematics
Perform the indicated operation.-5 + (-10)
A. 5 B. -15 C. 15 D. -5
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Solve the problem.When sitting atop a tree and looking down at his pal Joey, the angle of depression of Mack's line of sight is 46°8'. If Joey is known to be standing 15 feet from the base of the tree, how tall is the tree (to the nearest foot)?
A. 16 ft B. 20 ft C. 22 ft D. 18 ft
Mathematics
Solve.
= 6 - x
A. ±5
B. -9, -4
C. ±
D. 4
Mathematics