Use the indicated property to provide a new expression equal to the given expression. Simplify, if possible.6 + x; commutative
A. 6 - x
B. -x - 6
C. x - 6
D. x + 6
Answer: D
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Solve the problem. Use 3.14 for ?. Round to the nearest whole number.The cylindrical tank of a chemical transport truck is 28 feet long and has a diameter of 8 feet. If 1 cubic foot is equal to 7.5 gallons, how many gallons does the truck hold?.
A. 5275 ft3 B. 21,101 ft3 C. 10,550 ft3 D. 2638 ft3
Solve the problem.Find two consecutive positive integers such that the square of the larger integer added to seven times the smaller integer is equal to 253.
A. 12, 13 B. -21, -20 C. No such integers exist. D. 21, 22
Find the slope of the line.
A. - 
B. -4
C. 
D. 4
Radium - 226 has a half-life of 1600 years. Suppose we have a 300 g sample. How much of the sample remains after 200 years?
(a) 105.61 g (b) 124.61 g (c) 275.1 g (d) 288.1 g (e) 200.1 g