Solve.5 ? 5t - 5 ? 25
A. -6 < t < -2
B. 2 ? t ? 6
C. -6 ? t ? -2
D. 2 < t < 6
Answer: B
Mathematics
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Represent each of the following situations with a signed number.The temperature recorded at the airport was 49° below zero.
A. -49 B. +49
Mathematics
For the pair of functions, perform the indicated operation.f(x) = x2 + 1, g(x) = 2x - 7
Find (f ? g)(x).
A. 2x3 + 2x2 - 7x - 7 B. 2x2 + 2x - 7 C. 2x3 - 7x2 + 2x - 7 D. 2x3 - 7
Mathematics
Determine whether the situation or equation represents direct or inverse variation.The frequency that you brush your teeth and the length of time that you retain all your teeth
A. Direct B. Inverse
Mathematics
Supply the missing numbers. 
A. 
0.4
B. 
4
C. 
4
D. 
0.4
Mathematics