Divide and simplify.
÷ 
A. 
B. 
C. m + n
D. 
Answer: A
Mathematics
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Solve. Check for extraneous solutions.
+ 
= -1
A. 
B. {1}
C. {0}
D. ?
Mathematics
Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 10 when x = 2 and z = 4.
A. y = 
B. y = 23xz
C. y = 
D. y = 
Mathematics
Find P(18 ? x ? 21) given that the distribution for x is Normal (20, 2.5).
What will be an ideal response?
Mathematics
Find the mode.The last eight televisions sold at a local electronics store cost $379, $347, $430, $347, $349, $379, $349, $347.
A. The mode is 347. B. The mode is 379. C. The mode is 352.2. D. The two modes are 347 and 379.
Mathematics