Write the augmented matrix for the system. 4x - 2y = 16 6x + 9y = 72
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use TRACE to find the value of y for the given value of x.y = -x + 8x = 3
A. 5 B. 15 C. 3 D. -5
Mathematics
Refer to right triangle ABC with 
.
?
?
If 
and 
cm, find b.
?
Round the answer to the nearest whole number.
?
A. 65 cm
B. 64 cm
C. 68 cm
D. 67 cm
E. 69 cm
Mathematics
Solve the equation by completing the square.x2 + 2x + 3 = 0
A. -1 ± 2i
B. -1 ± i
C. 1 ± 2i
D. 1 ± i
Mathematics
Use Cramer's rule to solve the system of linear equations. 9x - 4y = -4-2x - 2y = -2
A. (-1, 0) B. (1, 0) C. (0, -1) D. (0, 1)
Mathematics