Use the quadratic formula to solve the quadratic equation.2x2 + 5x + 8 = 0
A. 
B. 
C. 
D. no real solution
Answer: D
Mathematics
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Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 6
C. b
D. 
Mathematics
Use the intermediate value theorem to approximate the one real zero on the given interval. Round your answer to two decimal places.f(x) = x3 - 8x - 3; [-3, -2]
A. -0.38 B. 2.62 C. 0.38 D. -2.62
Mathematics
X is Normal(5, 7).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable
Mathematics
Plot the points in the table in the xy-plane.
A. 
B. 
C. 
D. 
Mathematics