Solve. Write the answer using interval notation.3x + 1 < 19
A. (-?, 6)
B. [6, ?)
C. (6, ?)
D. (-?, 6]
Answer: A
Mathematics
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Solve the problem.A 50-m-long chain hangs vertically from a cylinder attached to a winch. Assume there is no friction in the system and that the chain has a density of 10 kg/m. How much work is required to wind the chain onto the cylinder if a 40-kg block is attached to the end of the chain?
A. 25,040g J B. 14,500g J C. 27,000g J D. 12,540g J
Mathematics
Solve the system by graphing.2x + y = 2 x + 6y = -21
A. (3, 2) B. (3, -4) C. (-3, -4) D. (-1, 4)
Mathematics
Find the future value.$4383.95 invested for 12 years at 5% compounded monthly
A. $7929.36 B. $7958.42 C. $7872.94 D. $7978.13
Mathematics
Divide.0.7 ÷ 0.07
A. 0.01 B. 0.1 C. 10 D. 1
Mathematics