Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed:   What is the probability that a student has at most 2 siblings?

A. 0.43
B. 0.57
C. 0.75
D. 0.25


Answer: C

Mathematics

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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-2x2y)4

A. 16x6y4 B. -8x2y4  C. 16x8y4  D. -8x2y 

Mathematics

Solve the problem.Sketch the derivative of the graph.

A.

B.

C.

D.

Mathematics

Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. v = 4t - 6t3 [v is the velocity]

A. 4 - 6t2  B. 4 - 18t2  C. 4t - 18t2  D. 4t - 18t3 

Mathematics

Subtract and write the resulting polynomial in descending order of degree.(2f2 - 8f - 6) - (4f - 8)

A. 2f2 - 12f + 2 B. 12f + 2 + 2f2 C. 2f2 + 4f + 14 D. 2f2 + 12f + 14

Mathematics