Use the Gauss-Jordan method to solve the system of equations. 7x + 5y - z = 82 x + 4y - 3z = 22 7x + y + z = 68
A. (-9, 4, 18)
B. (9, 4, 1)
C. No solution
D. (9, 1, 4)
Answer: B
Mathematics
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Identify the degree of the polynomial.3t6 + 4t3 + 5 - 2t2
A. 3 B. 11 C. 6 D. 2
Mathematics
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cot (-60°)
A. -
B. 
C. - 
D. 
Mathematics
Solve the equation for x.9x + 1 = (3x - 1)(m + 3)
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Two triangles can be formed using the given measurements. Solve both triangles.B = 49°, a = 16, b = 14
A. A = 30.4°, C = 100.6°, c = 10.7; A = 149.6°, C = 79.4°, c = 10.7 B. A = 30.4°, C = 100.6°, c = 18.2; A = 149.6°, C = 79.4°, c = 18.2 C. A = 59.6°, C = 71.4°, c = 11.1; A = 120.4°, C = 10.6°, c = 11.1 D. A = 59.6°, C = 71.4°, c = 17.6; A = 120.4°, C = 10.6°, c = 3.4
Mathematics