Determine the number and type of solutions.x2 + 10x + 29 = 0
A. 2 imaginary solutions
B. 1 real solution
C. 2 real solutions
Answer: A
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Use a calculator to help solve the equation. Round approximate answers to three places.-415.748 = 31.447 + x
A. {-447.195} B. {-13.221} C. {-384.301} D. {-0.076}
Multiply or divide. Write any repeating decimals with as few digits as possible.50.7 ? 3.9
A. 54.6 B. 197.73 C. 197.84 D. 198.83
Solve the problem.A building needs a ramp to make it handicap accessible. By law, the ramp must run 10 inches horizontally for every 1 inch of rise. If the surface of the ramp is 64 inches long, how far above the ground is the inclined end of the ramp? Round to the nearest tenth of an inch.
A. 5.8 inches B. 21.3 inches C. 6.4 inches D. 4.5 inches
First use front end rounding to estimate the answer. Then multiply to find the exact answer.
A. Estimate: 15; exact: 16.87576 B. Estimate: 1.5; exact: 1.687576 C. Estimate: 150; exact: 1687.576 D. Estimate: 150; exact: 168.7576