Rewrite the radical expression using rational exponents. Assume all variables represent nonnegative real numbers.
A. -m7/8
B. m7/8
C. m8/7
D. 
Answer: B
Mathematics
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Simplify the expression. Assume all variables represent positive real numbers.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Find the remaining trigonometric functions of ? if 
and ? terminates in QII.
?
A. ?
,
, 
,
,
B. 
,
, 
,
,
C. ?
,
, 
,
,
D. ?
,
, 
,
,
E. 
, 
, 
,
,
Mathematics
Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 4, y = -3; (4, -3) B. x = 3, y = -4; (3, -4) C. x = -4, y = -3; (-4, -3) D. x = -3, y = 4; (-3, 4)
Mathematics
Show by substitution whether the number r is a solution of the corresponding quadratic equation.x2 + 2x - 99 = 0; r = 9
A. Yes B. No
Mathematics