Find the expected value for the random variable.
A. 4.5
B. 3.3
C. 3.1
D. 2.7
Answer: B
Mathematics
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Multiply and simplify.-6z ? 
A. 0 B. 36z C. 1 D. -1
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Write an expression for the total area of the figure(s) shown.
c
A. ab + 2c B. abc C. ab + c2 D. ab + c
Mathematics
Solve by extracting square roots.x2 = 24
A. {±12}
B. {±6
}
C. {576}
D. {±2
}
Mathematics