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