Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(-3, -4), (-4, -3)}
B. {(3, -4), (3, 4)}
C. {(3, 4), (4, 3), (-3, -4), (-4, -3)}
D. {(3, 4), (-3, 4), (3, -4), (-3, -4)}
Answer: D
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Find the missing values. Round amounts to the nearest dollar and rates to the nearest percent.Maturity value: $19,044Discount rate: 
Date made: 
Due date: 9/9Time: 120 daysDiscount: $691Proceeds: 
A. Discount rate: 9% Date made: 5/12 Proceeds: $19,044 B. Discount rate: 9% Date made: 5/12 Proceeds: $18,353 C. Discount rate: 11% Date made: 5/9 Proceeds: $18,353 D. Discount rate: 11% Date made: 5/12 Proceeds: $18,353
Compute AB, if possible.A = 
and B = 
A. 
B. 
C. 
D. not possible
Solve the problem.The energy E (measured in joules) released by an earthquake of magnitude M on the Richter scale 
is given by the equation 
. Suppose an earthquake registers 7 on the Richter scale. Let I0 = 1. What is the intensity of the earthquake?
A. I = 1014.9 B. I = 107 C. I = 14.910 D. I = 710
Solve the problem.A triangle has an area of 3x2 + 19x - 84. Use factoring to rewrite this expression.
A. (3x - 28)(x - 3) B. (3x + 28)(x + 3) C. (3x - 28)(x + 3) D. (3x + 28)(x - 3)