Find the expected value of the random variable.The random variable X is the number of offspring per year for a certain animal species. Find the expected number of offspring per year.
A. 1.58
B. 1.75
C. 1.38
D. 2
Answer: A
Mathematics
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Solve the inequality and graph the solution set.-1 ? 2x + 3 < 9
A. 
B. 
C. 
D. 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Mathematics
Find a polynomial equation with real coefficients that has the given roots.4, -10, 3 + 3i
A. x4 - 7x3 - 12x2 + 174x - 720 = 0 B. x4 - 87x2 + 348x - 720 = 0 C. x4 - 58x2 + 348x - 720 = 0 D. x4 - 7x3 + 12x2 - 174x + 720 = 0
Mathematics
Perform the operation indicated.
÷ 
A. 
B. 
C. 
D. 21
Mathematics