If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.18491/2
A. 43
B. 172
C. 21.5
D. 86
Answer: A
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Solve.The ocean surface is at 0 ft elevation. A diver is underwater at an elevation of -144 ft near a rock formation. In this area, the ocean floor has an elevation of -333 ft. The rock formation rises to a peak 223 ft above the ocean floor. How many feet below the top of the rock formation is the diver?
A. 79 ft B. 110 ft C. 189 ft D. 34 ft
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(2 + 4i)(2 - 4i)
A. -12 B. 4 + 16i C. 4 - 16i D. 20
Find two equivalent expressions for the opposite of the polynomial.2x2 + 8x - 3
A. -(2x2 + 8x - 3); -2x2 - 8x + 3 B. -(2x2 + 8x - 3); 2x2 - 8x + 3 C. -(2x2 + 8x - 3); -2x2 + 8x + 3 D. -(2x2 + 8x - 3); -2x2 - 8x - 3
Perform the indicated operation.15 tons 1,340 lb + 6 tons 1,572 lb
A. 9 tons 1,768 lb B. 22 tons 912 lb C. 8 tons 1,768 lb D. 21 tons 912 lb