Solve the problem.Find the expected number of boys in a family of 4 children.

A. 2.5
B. 2.75
C. 3
D. 2

Answer: D

Mathematics

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Simplify.(a-3)-6

A.
B.
C. a18
D. a3

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Mathematics

Use the table of values of f to estimate the limit.Let f(x) = , find f(x).

A.
 ; limit = 0.0429
B.
 ; limit = -1
C.
 ; limit = 0.2429
D.
 ; limit = 0.1429

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Mathematics

Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable.Find csc A when b = 24 and c = 51

A.
B.
C.  
D.

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Mathematics

Graph the ellipse.9x2 + 10y2 = 90

A.

B.

C.

D.

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Mathematics