Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. -2
+ 5
- 
- 5
A. 21
+ 5
B. -21
+ 5
C. 21
- 5
D. -21
- 5
Answer: D
Mathematics
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Find the indicated term for the arithmetic sequence with the first term a1 and the common difference d. Find a8 when a1 = 7, d = -5
A. -33 B. 47 C. -28 D. 42
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Solve the problem.Given the acceleration, initial velocity, and initial position of a body moving along a coordinate line at time t, find the body's position at time t.a = sin 4t + 20, v(0) = - 
, s(0) = 9
A. s = - 
sin 4t + 10t2 + 9
B. s = - 
sin 4t - 10t2 + 9
C. s = - 
cos 4t + 10t2 + 9
D. s = 
cos 4t + 10t2 + 9
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Graph the given logarithmic function. y = log2x
A. 
B. 
C. 
D. 
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Find a cofunction with the same value as the given expression.csc 
A. cot 
B. sec 
C. csc 
D. csc 
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