If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.IV, 
A. Positive
B. Negative
Answer: B
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Solve the problem.The table below gives the violent crime rate (per 100,000 people) for a particular state every five years from 1970 to 2010. 
Use technology to find the cubic function that is the best fit for this data, where x is the number of years after 1970. Round to five decimal places.
A. y = -0.00034x3 + 0.01950x2 - 0.04893x + 4.79798 B. y = 4.79798x3 - 0.04893x2 + 0.01950x - 0.00034 C. y = -0.00053x3 + 0.02460x2 - 0.01893x + 5.79798 D. y = -0.00024x3 + 0.02250x2 - 0.03111x + 4.68687
Solve. Write results using scientific notation.A company produced 922,000 small appliances in one year and made a profit of 
. What was the profit on each appliance?
A. $8.24 B. $1.21 x 10-1 C. $1.21 x 101 D. $8.24 x 10-1
Add. Do not use a number line except as a check.17 + (-1) + 2 + (-20) + 17 + (-7)
A. -64 B. 8 C. 6 D. 4
Solve the equation by dividing each side by the coefficient. Simplify.n ? 45 = 12
A. n = 
B. n = 
C. n = 
D. n = 540