Find the product.(-0.389)2
A. 0.151321
B. 0.0151321
C. -0.151321
D. -0.0151321
Answer: A
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Subtract.
- 
A. - 
B. 
C. 
D. - 
The graph of a function f is given. Use the graph to answer the question.Is f(80) positive or negative?
A. positive B. negative
Solve the problem.Under certain conditions the wind speed S, in miles per hour, of a tornado at a distance d from its center can be approximated by the function 
where a is an atmospheric constant, and V is the approximate volume of the tornado, in cubic feet. Interpret 
.
A. The rate of change in volume per unit change in speed while distance is held constant.. B. The rate of change in speed per unit change in volume and distance. C. The rate of change in speed per unit change in distance while volume is held constant. D. The rate of change in speed per unit change in volume while distance is held constant.
Write an equation that can be used to solve the problem. Then solve the equation and answer the question.Five divided by the sum of a number and 9, minus the quotient of 3 and the difference of the number and 9 is equal to 6 times the reciprocal of the difference of the number squared and 81. What is the number?
A. -33
B. 39
C. - 
D. 12