Use the information below to determine the cardinality of the set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}n(A' ? B)
A. 3
B. 9
C. 8
D. 2
Answer: C
Mathematics
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Provide an appropriate response.How many real solutions are possible for a system of equations whose graphs are a line and a circle?
A. 0, 1, 2, or 3 solutions B. 0, 1, or 2 solutions C. 1, 2, or 3 solutions D. 1 or 2 solutions
Mathematics
Find the slope and the y-intercept of the given line.y = - 
x + 5
A. - 
; (0, -5)
B. - 
; (0, 5)
C. 
; (0, 5)
D. 
; (0, -5)
Mathematics
Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 48 seconds are required to make a 3-by-4 enlargement, find the time required for a 7-by-10 enlargement.
A. 350 sec B. 280 sec C. 210 sec D. 420 sec
Mathematics
Add and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics