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