Solve the equation.3r + 6 = 30
A. r = 8
B. r = 25
C. r = 4
D. r = 21
Answer: A
Mathematics
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Evaluate the integral.
A. 
tan-1 4x + C
B. 
tan-1 (x + 4) + C
C. 4 tan-1 
+ C
D. 
tan-1 
+ C
Mathematics
Find the length and direction (when defined) of u × v.u = 8j, v = -5k
A. -40; -40i B. 40; -i C. 8; -5i D. 40; i
Mathematics
Solve for the missing number.
= 
A. -27
B. 36
C. 65
D. - 3
Mathematics
Simplify.
- 2
- 5
A. -39
B. -7
C. -7
D. -39
Mathematics