Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 - 4y2 = -375x2 + 2y2 = 77
A. (3, -4), (3, 4)
B. (3, 4), (4, 3), (-3, -4), (-4, -3)
C. (3, 4), (3, -4), (-3, 4), (-3, -4)
D. (-3, -4), (-4, -3)
Answer: C
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Answer the question.An opinion survey is conducted to determine how Americans 60 years and older feel about the new budget passed by Congress. What is the population?
A. All Americans 60 yrs or older B. All 60-year-old persons living in Washington, D.C. C. All 60-year-old men D. All Americans living in the U.S.A.
Solve the problem. Round to the nearest cent.Mary borrowed $15,907 on December 15. The loan, at an interest rate of 12%, is for a term of 126 days. Find the date due and the future value for this loan.
A. April 20, $16,575.09 B. April 21, $16,702.35 C. April 20, $16,463.75 D. April 21, $16,272.86
Find the vertices and the foci of the given ellipse.25x2 + 81y2 = 2025
A. V: (-81, 0), (81, 0);
F: (-9, 0), (9, 0)
B. V: (0, -9), (0, 9)
F: (0, - 2
), (0, 2
)
C. V: (0, -25), (0, 25)
F: (0, -5), (0, 5)
D. V: (-9, 0), (9, 0);
F: (- 2
, 0), (2
, 0)
Write a matrix equation equivalent to the system of equations. 3x + 7y = -4-4x - 2y = -4
A. 
=
B.
  = |
C.
=
D.
= 