Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.2.0x + 2.0y - 5.0z = 1.25.0x - 3.4y - 1.8z = -3.12.6x - 4.7y - 3.8z = 9.2
A. (-12.7, -8.9, -9.8)
B. (-2.5, -1.8, -2.0)
C. (-10.1, -7.1, -7.8)
D. (-5.1, -3.5, -3.9)
Answer: B
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Write expanded notation.4,392
A. 4,392 thousands B. 4 hundreds + 9 tens + 3 ones C. 2 thousands + 9 hundreds + 3 tens + 4 ones D. 4 thousands + 3 hundreds + 9 tens + 2 ones
A country has four states. Suppose the population of State 1 is P1, the population of State 2 is P2, the population of State 3 is P3, and the population of State 4 is P4. Suppose also that the total number of seats in the legislature is M and the standard divisor is D.The value of D is
A. 
.
B. 
.
C. 
.
D. P1 + P2 + P3 + P4.
E. none of these
Use a graphing calculator to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.-2 - 6 - 18 - 54 - 162 - ... - 2 ? 37
A. -6560 B. -6580 C. -6558 D. -6523
The simple interest note was discounted at 12%. Find the discount period in days and the proceeds to the nearest cent. A year is assumed to have 360 days for all calculations. Loan made: April 13Face value: $800Length of loan: 150 daysSimple interest rate: 10%Date of discount: June 13
A. 90 days, $779.17 B. 90 days, $812.50 C. 89 days, $808.61 D. 89 days, $775.28