Provide an appropriate response.The roots of (x - 1)(x + 2) = 10 are
A. -1 and 2 only
B. -4 and 3 only
C. -4 and 8 only
D. 8 and 11 only
E. 1 and -2 only
Answer: B
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Solve the problem.A certain radioactive isotope has a half-life of approximately 1450 years. How many years, to the nearest whole number, would be required for a given amount of this isotope to decay to 35% of that amount?
A. 901 years B. 942.5 years C. 2196 years D. 2161 years
Convert the given number to scientific notation.1,037,000,000,000,000
A. 1.037 × 1015 B. 1.037 × 10-15 C. 1037 × 10-12 D. 1037 × 1012
Divide.-207 ÷ (-9)
A. 13
B. -23
C. 
D. 23
Solve the problem. Where appropriate, round to three places.A telephone is placed in the corner of a 13-ft by 17-ft room. Telephone wire will run diagonally under the carpet to the jack in the opposite corner of the room. If 4 ft of slack is required on each end, how much wire should be purchased?
A. 21.401 ft B. 29.401 ft C. 13.401 ft D. 25.401 ft