Simplify. Assume that all variables represent positive real numbers.4
+ 
A. 8
B. 5
C. 16
D. 4
+ 
Answer: A
Mathematics
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Solve.3x2 + 2 = 50
A. 25 B. 4 C. ±5 D. ±4
Mathematics
Evaluate the expression by hand.(4-1/3)-9
A. 64
B. 
C. - 
D. -64
Mathematics
Add.-|3| + |2|
A. -1 B. 1 C. 5 D. -5
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.an = an-1 - 4, a1 = 32
A. an = 32n + 36, a20 = 676 B. an = 28n + 32, a20 = 592 C. an = -4n + 36, a20 = -44 D. an = -4n + 28, a20 = -52
Mathematics