Add or subtract. Assume all variables represent positive real numbers.
+ 9
- 9
A. 38
B. 59
C. -38
D. -50
Answer: C
Mathematics
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Completely factor the polynomial or state that the polynomial is prime.x3 + 18x2 + 81x
A. prime B. x(x + 9)(x - 9) C. x(x + 9)2 D. x(x - 9)2
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.
? 
A. 42
B. 
C. 
D. 
Mathematics
Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.tan ? = 3Find sin ?.
A. 
B. 
C. 
D. 
Mathematics
Find the indicated term of the geometric sequence.a1 = 960, r = 
; Find a4.
A. a4 = - 
B. a4 = 
C. a4 = -15
D. a4 = 15
Mathematics