Solve the problem.The temperature at 5:00 was -2° C. Four hours later, it was -14° C. What was the change in temperature?
A. 16° C
B. 12° C
C. -12° C
D. -16° C
Answer: C
Mathematics
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Solve the system of equations. x - y + 4z = -34x + z = 0 x + 5y + z = 15
A. {(0, 3, -3)} B. {(0, 0, 3)} C. ? D. {(0, 3, 0)}
Mathematics
Solve the problem.Deepak doesn't trust banks, so his savings are hidden under his mattress. Betsy has her savings in an investment at simple interest. In approximately what year did they have the same amount?
A. 1986 B. 1988 C. 1989 D. 1996
Mathematics
Complete the table and use the table to estimate the limit.
x-0.1-0.01-0.001? ?0.0010.01 0.1 f(x)???????
A. 0 B. does not exist C. 7 D. 7.1
Mathematics
Find the distance between the pair of points.(2
, -2) and (4
, 0)
A. 16 B. 3 C. 4 D. 8
Mathematics