Solve the problem.The frequency setting for a garage door opener is determined by the positions of ten switches, each of which can be set to a "+" or "-" position. In how many ways can the switches be set?
A. 1144 ways
B. 1024 ways
C. 100 ways
D. 59,049 ways
Answer: B
Mathematics
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Answer Yes or No.Is -4 a solution to 
(x + 6) = 
x + 1?
A. Yes B. No
Mathematics
Use the Gauss-Jordan method to solve the system of equations.2x - 5y + z = 113x + y - 6z = 15x - 4y - 5z = 12
A. 
B. 
C. 
D. 
Mathematics
Find the derivative.y = 6x - 1
A. 6 ln 6 B. 6x - 1 ln x C. 6x - 1 ln 6x - 1 D. 6x - 1 ln 6
Mathematics
Use a half-angle formula to find the exact value of the expression.tan 165°
A. -
+ 2
B. -
- 2
C. 
- 2
D. 
+ 2
Mathematics