Divide.
A. x2 - 5 + 
B. 4x2 + 5x - 5 + 
C. 4x2 + 5x - 5 + 
D. 4x2 + 5x - 5
Answer: C
Mathematics
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Evaluate the exponential function at the specified value of x.y = 2x , x = -4
A. 
B. 8
C. - 
D. 
Mathematics
Find the angle between the pair of vectors to the nearest tenth of a degree.7i - 4j, 9i - 8j
A. 11.9° B. 71.4° C. 12.9° D. 39.4°
Mathematics
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.20, 13 , 6, -1, . . .
A. an = 20 - 7n; a20 = -120 B. an = 7n - 20; a20 = 120 C. an = 7n - 27; a20 = 113 D. an = 27 - 7n; a20 = -113
Mathematics
Solve using the percentage formula.3.1 is what percent of 4?
A. 75.5% B. 78.5% C. 82.5% D. 77.5%
Mathematics