Answer the question.What does the digit 7 mean in the number 189,247?

A. 7 ones
B. 7 hundreds
C. 7 thousands
D. 7 tens


Answer: A

Mathematics

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Solve and check.100y2 - 121 = 0

A.
B.
C. - 
D. - 

Mathematics

Match the given equation with one of the graphs. -  = 1

A.

B.

C.

D.

Mathematics

Find all solutions to the equation.14 sin 5x - 1 = 6

A. x =  + n, x =  + n, for integers n
B. x =  + 2?n, x =  + 2?n, for integers n
C. x =  + n, x =  + n, for integers n
D. x =  + n, for integers n

Mathematics

Simplify.-7(2r + 2) + 9(7r + 3)

A. -28r B. 49r + 2 C. 49r + 13 D. -5r - 5

Mathematics