Perform the indicated operation.-(3x3 + x - 8) + (8x3 + 2x2) - (6x2 - 7x -1)
A. 11x3 - 8x2 + 6x - 9
B. 4x3 - 2x2 - 6x + 9
C. 5x3 - 4x2 + 6x + 9
D. 5x3 + 4x2 + 8x - 9
Answer: C
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Solve.A certain amount of money saved for 1 year at a certain annual interest rate (simple interest) yielded $13.80 in interest. If we had added $23 to the principal and reduced the interest rate by 2 percentage point(s), the interest would have been the same. Find the principal and the rate.
A. $2.32, 17% B. $14.00, 10% C. $14.00, 12% D. $115.00, 12%
Convert as indicated. Express the answer in decimal form when needed.15,840 feet per hour to miles per hour
A. 79.2 mi/hr B. 3.5 mi/hr C. 4 mi/hr D. 3 mi/hr
Perform the indicated operation. Write your result in scientific notation.(4 × 105)(8 × 107)
A. 3.2 × 1013 B. 32 × 1013 C. 32 × 1035 D. 3.2 × 1012
A purchaser obtains a 5-year auto loan at an annual interest rate of 3.04% compounded monthly. Calculate the monthly car payment if the total car cost is 19,030, including tax and license.
a. $4,820.94 b. $342.28 c. $3,834.97 d. $379.48