Find the distance between two points given their coordinates.Find the distance between points P and Q on a number line, with coordinates -10 and 3, respectively.
A. d(P, Q) = -7
B. d(P, Q) = -13
C. d(P, Q) = 13
D. d(P, Q) = 7
Answer: C
Mathematics
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Find the perimeter of the figure.
A. 288 cm B. 71 cm C. 48 cm D. 72 cm
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If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.729-1/3
A. 9
B. 
C. 
D. -9
Mathematics
Solve.The ratio of the weight of an object on Earth to an object on Planet X is 5 to 7. If a person weighs 140 pounds on Earth, find his weight on Planet X. (Round to the nearest whole number, if necessary.)
A. 196 pounds B. 100 pounds C. 4900 pounds D. 4 pounds
Mathematics
Solve the problem.Erika spent 
hour on her computer visiting a history website and a science website. She spent 
hour at the history website. How many hours did she spend at the science website?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics