Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 653 ohms
B. 657.5 ohms
C. 672 ohms
D. 660 ohms
Answer: D
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State whether you think that the variables have strong positive correlation, weak positive correlation, strong negative correlation, weak negative correlation, or no correlation.Actual temperature on a given day and the temperature that had been forecast for that day 10 days previously.
A. Strong negative correlation B. No correlation C. Weak positive correlation D. Strong positive correlation E. Weak negative correlation
Solve the system using the graphing method. 3x + 3y = 10-15x - 15y = 10 
A. {(-5, -10)}
B. {(5, 10)}
C. {(1, 1)}
D. ?
Multiply.
x4y6(2x - 5y - 4)
A. 
x5y6 - 
x4y7 - 
B. 
x5y6 - 
x5y7 - 
x4y6
C. 
x5y6 - 
x4y7 - 
x4y6
D. - 
x4y6
Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
A. 
= 
= 
B. 
= 
= 
C. 
= 
= 