Evaluate the function.f(x) = -2x - 13; f(-9)
A. -13
B. 5
C. 26
D. 8
Answer: B
Mathematics
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Solve.The sum of three numbers is 5. The sum of the first and second numbers is 3, and the first number is one more than three times the third number. How many of the numbers are even numbers?
A. 1 B. None C. 2 D. 3
Mathematics
Perform the calculation. Express the answer in degree-minutes-seconds format.78°26' - 13°50'
A. 64°36' B. 65°24' C. 91°76' D. 65°50'
Mathematics
Factor by any method.y2 - 81
A. (y - 9)(y - 9) B. (y + 81)(y - 81) C. (y + 9)(y - 9) D. (y2 + 9)(y2 - 9)
Mathematics
Divide. Simplify, if necessary.
÷ 
A. 
B. 
C. - 
D. 
Mathematics