Solve the problem.The test scores of 19 students are listed below. Find the interquartile range.
A. 31.5
B. 28.5
C. 31
D. 30.5
Answer: C
Mathematics
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Find the exact value of the expression using a sum or difference identity.cos 
A. 
B. 
C. 
D. 
Mathematics
Solve. Remember to insert units when writing your answer.There are two trees in Raul's garden. One tree is 23 ft 8 in. tall. The other tree is 19 ft 9 in. tall. How much taller is the taller tree?
A. 3 ft 11 in. B. 4 ft 11 in. C. 42 ft 11 in. D. 4 ft 1 in.
Mathematics
Solve the equation.Solve cot ? = 
for ?, where 0° ? ? ? 90°
A. 45° B. 60° C. 75° D. 30°
Mathematics
Find the slope of the line through the pair of points.(9, -8) and (3, 5)
A. - 
B. - 
C. 
D. 
Mathematics