Find a formula for the function graphed.

A. f(x) =  
B. f(x) =  
C. f(x) =   

D. f(x) =  


Answer: C

Mathematics

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Solve the problem.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.

A. 56 B. 65 C. 67 D. 76

Mathematics

Round the number as indicated.The number of atoms in a certain small piece of material is about 16,179,350,000. What is the place value to which this number apparently is rounded?

A. nearest million B. nearest ten thousand C. nearest thousand D. nearest hundred thousand

Mathematics

Find the exact value of the expression.sec 150°

A.
B. - 
C. - 
D.

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Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.5 + 6 + 7 + 8 + . . . + 35

A.
B.
C.
D.

Mathematics