Find the given value.Find (f + g)(-1) when f(x) = x - 4 and g(x) = x + 6.
A. 0
B. 8
C. -4
D. -12
Answer: A
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Find the square root.-
A. 3 B. -4 C. -3 D. Not a real number
A woman entering an outside glass elevator on the ground floor of a hotel glances up to the top of the building across the street and notices that the angle of elevation is 50°. She rides the elevator up three floors (60 feet) and finds that the angle of elevation to the top of the building across the street is 34°. How tall is the building across the street? (Give your answer to the nearest foot.) ?
A. 139 ft B. 138 ft C. 141 ft D. 136 ft E. 142 ft
Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 24 hours to do the job. How long would it take the experienced auditor working alone?
A. 48 hr B. 72 hr C. 36 hr D. 24 hr
Collect like terms.5x5 - 
x + 5x2 + 
x + 3x5
A. 13x12 - 
x
B. 8x5 + 5x2 + 
x
C. 13x2 + 
x
D. 8x5 + 5x2 - 
x