Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.What is 2.922 less than 5.28?
A. Estimate: 2; exact: 2.368
B. Estimate: 3; exact: 3.368
C. Estimate: 2; exact: 2.358
D. Estimate: 2; exact: 2.362
Answer: C
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Find the indicated part of the arithmetic sequence.Find a formula for an, given that a3 = -19 and a7 = -43.
A. an = -6n - 1 B. an = -24n + 5 C. an = 6n - 49 D. an = -6n - 13
Find the determinant of the matrix and determine if the matrix is invertible.
A student sets up an investment program and invests $140 at the end of each month into an account that earns an annual interest rate of 3% compounded monthly. Find the value of the investment after 20 years.
a. $46,077.19 b. $45,962.28 c. $47,341.15 d. $102,217.19
Solve the problem.At the local convenience store, 3 bags of chips and 3 containers of dip cost $12. However, 4 bags of chips and 5 containers of dip cost $19. What is the cost of one bag of chips and one container of dip?
A. chips = $1; dip = $3 B. chips = $2; dip = $2 C. chips = $1.50; dip = $2.50 D. chips = $3; dip = $4