Which of the following is more probable?
A. Flipping a coin 4 times and obtaining at least 3 heads.B. Flipping a coin 5 times and obtaining at least 3 heads.?

A. A
B. B
C. same
D. cannot tell

Answer: B

Mathematics

Solve the problem.Find C(x) if C'(x) = 5x2 - 7x + 4 and C(6) = 260.

A. C(x) = x³ - x² + 4x - 260
B. C(x) = x³ - x² + 4x + 260
C. C(x) = x³ - x² + 4x + 2
D. C(x) = x³ - x² + 4x - 2

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Mathematics

Divide. ÷ (-45)

A. - 5
B. -
C. -10
D.

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Mathematics

Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.tan 3°

A. -0.05 B. -0.14 C. 0.05 D. -0.04

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Mathematics

Simplify.225 ÷ (15 ÷ 5)

A. 15 B. 3 C. 222 D. 75

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Mathematics