Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(3x3y7)-2
A. 
B. 
C. 
D. 9x6y14
Answer: B
Mathematics
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Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 - y2 = 14x2 + 2y2 = 14
A. (
, 2), (
, -2), (-
, 2), (-
, -2)
B. (
, 4), (
, -4), (-
, 4), (-
, -4)
C. (
, 2), (
, -2), (-
, 2), (-
, -2)
D. no real solution
Mathematics
Use the compound interest formula to determine the final value of the given amount.$480 at 18% compounded quarterly for 5 years
A. $1107.77 B. $677.62 C. $1098.12 D. $1157.62
Mathematics
Find the angle between v and w. Round your answer to one decimal place, if necessary.v = -5i + 7j,
w = -6i - 4j
A. 88.2° B. 20.7° C. 110.8° D. 90.9°
Mathematics
Divide and round to the nearest hundredth.-178.9326 ÷ (-0.87)
A. 205.67 B. 20.57 C. -205.67 D. -20.57
Mathematics