This frequency table gives the distribution of ages of 100 people in a small town.
How many people are:Less than 30 years of age
A. 22
B. 29
C. 36
D. 18
Answer: C
Mathematics
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Solve.A boat moves 7 kilometers upstream in the same amount of time it moves 18 kilometers downstream. If the rate of the current is 7 kilometers per hour, find the rate of the boat in still water.
A. 15
km/hr
B. 7 km/hr
C. 4
km/hr
D. 11
km/hr
Mathematics
Solve the inequality.x2 + 6x ? -8
A. -4 ? x ? -2 B. 2 ? x ? 4 C. 2 < x < 4 D. x ? 2 or x ? 4
Mathematics
Classify the statement as true or false.{10} ? {8, 10, 12, 14}
A. True B. False
Mathematics
A and B are invertible matrices. Find the expression equivalent to the following.
?
?
A. 
B. 
C. 
D. 
E. none of these
Mathematics