Write the set by listing its elements.{z|z is a number whose absolute value is 7}
A. {-7, ..., 7}
B. {-7, 7}
C. {7}
D. {-7}
Answer: B
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Find the probability.A digit is chosen randomly from the digits 0 through 9 and then 7 is added to the digit and the sum recorded. Find the probability that the sum is 11.
A. 
B. 
C. 0
D. 
Verify the identity.tan
= -cot x
What will be an ideal response?
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r sin ? = 2
A. 
x = 2; vertical line 2 units
to the right of the pole
B. 
y = 2; horizontal line 2 units
above the pole
C. 
x = -2; vertical line 2 units
to the left of the pole
D. 
y = -2; horizontal line 2 units
below the pole
Solve.A ranger in fire tower A spots a fire at a direction of 40°. A ranger in fire tower B, which is 28 miles directly east of tower A, spots the same fire at a direction of 116°. How far from tower A is the fire?
A. 33 miles B. 22 miles C. 24 miles D. 26 miles