Solve the problem.The difference between two positive integers is 30. One integer is three times as great as the other. Find the integers.
A. 15 and 30
B. 30 and 45
C. 15 and 45
D. 45 and 75
Answer: C
Mathematics
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Graph the function.y = - 
cos 
x
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 2 B. 5 C. 0 D. 10
Mathematics
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.3
÷ 4
A. 3
B. 13
C. 3
D. 
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. [-3]
Mathematics