Simplify and write the answer using scientific notation. Use the correct number of significant digits.(7.7 × 10-4)(8.3 × 107)

A. 1.8 × 103
B. 6.4 × 104
C. 6.4 × 103
D. 16 × 1011


Answer: B

Mathematics

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Determine whether or not the set is well defined.{x | x is a tennis player who has won at Wimbledon}

A. Well defined B. Not well defined

Mathematics

Use a grapher to graph the function.The charge y on a certain capacitor as a function of time is given by  Charge is measured in coulombs, and time is measured in seconds. Sketch two cycles of y as a function of t. Label the point on the horizontal axis which represents the end of the second cycle.

A.

B.

C.

D.

Mathematics

Solve each proportion for the given variable. = 

A. 2
B. 123
C. 28
D. 21

Mathematics

Write a symbolic representation for the linear function f that computes the following.The number of ounces in x pounds

A. f(x) = 16x
B. f(x) = 4x
C. f(x) =  x
D. f(x) = 16 + x

Mathematics