Combine like terms.6a + 12 + a + 2ab
A. 6a + 2ab + 12
B. 9ab + 12
C. 9a + 2b + 12
D. 7a + 2ab + 12
Answer: D
Mathematics
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Find the approximate value of the expression, rounded to four decimal places.sin 22.0°
A. 0.4040 B. -0.0089 C. 0.9272 D. 0.3746
Mathematics
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. 5x - y + z = 8 7x + y + z = 6
A. {(
z + 
, 
z, z)}
B. ?
C. {(- 
z + 
, 
z - 
, z)}
D. {(-z + 3, 4z + 7, z)}
Mathematics
Find the quotient.
A. 26
B. -26
C. - 
D. -36
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics