Solve the system of equations by using the inverse of the coefficient matrix.-2x + 9z = 63-6x + 9y + 2z = 18 5x - 9y = -9
A. (6, 9, 6)
B. (9, -6, -9)
C. (10, 4, 9)
D. (9, 6, 9)
Answer: D
Mathematics
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f(x)
A. Does not exist B. 0 C. 1 D. -1
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In the right triangle ABC with m
= 90°, the sides have lengths a = 5, b = 12, and c = 13. Where a is the length of side opposite 
, find sin 
.
What will be an ideal response?
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Solve the equation.-5.3c = -31.8
A. -26.5 B. 26.5 C. 2.0 D. 6.0
Mathematics
Determine if the given value is a solution to the equation.
(m - 3) = 
(m + 2) - 
m; m = 
A. Yes B. No
Mathematics