Use the counting principle to obtain the answer.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. 100
B. 1144
C. 59,049
D. 1024
Answer: D
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Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 120 m. The hypotenuse is 40 m longer than the length of the longer leg. How long is the longer leg?
A. 120 m B. 200 m C. 240 m D. 160 m
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.
-1/2
A. 
B. 
C. 
D. Not a real number
Provide an appropriate response.Which one of the following is a description of the graph of the solution set for the system below?16x2 + 25y2 < 400y < -4
A. Outside the ellipse and below the line B. Outside the ellipse and above the line C. Inside the ellipse and above the line D. Inside the ellipse and below the line
Find the function from the given verbal description of the function.If w is equal to the square root of x, y is the sum of w and 15, and z is y divided by 9, then write z as a function of x.
A. z = 
B. z = 
C. z = 
D. z = 
+ 15