Calculate the number of subsets and the number of proper subsets for the set.the set of words describing the colors on a stoplight
A. 16; 15
B. 8; 7
C. 7; 8
D. 15; 16
Answer: B
Mathematics
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Find the area of the specified region.Inside the circle r = -8 cos ? and outside the circle r = 4
A. 
?
B. 8?
C. 
(2? + 3
)
D. 
(4? - 3
)
Mathematics
Plot the indicated graphs.By pumping, the air pressure in a tank is reduced by 17% each second. Thus, the pressure p (in kPa) in the tank is given by 
, where t is the time (in s). Plot the graph of p as a function of t for 
s on semilog graph paper.
What will be an ideal response?
Mathematics
Consider the equation x = 3y + 6. When x = 0, where would you plot the value of y on a graph? a. (3,6) b. (0,-2) c. (0,6) d. (6,0) e. (-2,0)
a. (3,6) b. (0,-2) c. (0,6) d. (6,0) e. (-2,0)
Mathematics
Write as a percent. 1.06
A. 106% B. 206% C. 1060% D. 1560%
Mathematics