Solve and graph the inequality and graph the solution.-2 - 8z - 9 ? -9z - 10
A. [1, ?)
B. (-?, 1]
C. (-?, -8)
D. (-8, ?)
Answer: A
Mathematics
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Determine whether the statement makes sense. If the statement is possible then it makes sense. If it is clearly impossible, it does not make sense. In her lifetime my grandmother saw about 6 × 107 hours of commercials on television.
A. Yes B. No
Mathematics
Calculate the arc length of the indicated portion of the curve r(t).r(t) = 
t3/2i + (10t sin t)j + (10t cos t)k ; -4 ? t ? 6
A. 300 B. 540 C. 280 D. 200
Mathematics
Perform the operation indicated. Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the mean. Round to the nearest tenth unless otherwise stated.Retirement ages of teachers: 57, 64, 66, 53, 61, 58, 67, 55, 50
A. 58.4 B. 59.0 C. 57.7 D. 58.0
Mathematics