Write the inequality obtained by performing the indicated operation on the given inequality.Multiply each side of the inequality 5 + 5x ? 3 by 2.
A. 10 + 10x ? 6
B. 10 + 10x ? 6
C. 10 + 5x ? 6
D. 10 + 5x ? 6
Answer: B
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Find the product. Write the product in rectangular form, using exact values.[8 cis 240°] [6 cis 330°]
A. 24i
B. -12 + 12
i
C. 24
D. -24
- 24i
Simplify the expression. Write the result without using negative exponents. (Assume all variables represent nonzero real numbers.)(3m2n-3)2
A. 9m4n6
B. 3m4n6
C. 
D. 
Solve the problem.A sailboat leaves port on a bearing of S72°W. After sailing for two hours at 12 knots, the boat turns 90° toward the south. After sailing for three hours at 9 knots on this course, what is the bearing to the ship from port? Round your answer to the nearest 0.1°.
A. N23.6°E B. N24.6°E C. S24.6°W D. S23.6°W
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. 6x + 7y = -1612x + 14y = -18
A. (2, -4) B. (5, 40) C. (2, 40) D. No solution