The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January thru June?
A. $11,000
B. $9,200
C. $12,150
D. $13,000
Answer: C
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Use a calculator to write the expression as a decimal rounded to three decimal places.71/2
A. 2.646 B. 2.643 C. 2.651 D. 7.000
Solve the problem. Round to the nearest cent as needed.Cheraw Auto Repair believes that it will need new equipment in 10 years. The equipment will cost $26,000. What lump sum should be invested today at 8% compounded semiannually, to yield $26,000?
A. $17,637.61 B. $11,866.06 C. $17,462.98 D. $21,097.18
Use a cubic or quartic regression (as specified) to fit a curve through the points given in the table. Round to the nearest hundredth.
(Cubic)
A. y ? -0.23x3 + 0.73x2 + 5.10x + 15.00 B. y ? -0.23x3 + 0.93x2 + 5.30x + 15.00 C. y ? 0.23x3 + 0.73x2 + 5.30x + 15.00 D. y ? 0.23x3 + 0.93x2 + 5.10x + 15.00
Simplify.x4 ? x11
A. x44 B. x15 C. (2x)15 D. (2x)44