Find the radian measure of angle ?, if ? is a central angle in a circle of radius r, and ? cuts off an arc of length s.
?
r = 4 inches, s = 20 inches
?
A. 5
B. 6
C. 2
D. 3
E. 1
Answer: A
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Factor the expression completely. If the polynomial is prime, state this as your answer.16x2 - 24x + 9
A. (4x - 4)2 B. (4x - 3)2 C. (4x + 3)(4x - 3) D. (4x + 3)2
Find an equation of variation for the given situation.y varies directly as the square of x, and y = 28.35 when x = 9.
A. y = 1.92x2
B. y = 0.35x2
C. y = 0.39
D. y = 0.4x2
Use the power rules for exponents to simplify the expression. Write the answer in exponential form.8(rt)5
A. 85r5t5 B. 8rt5 C. 8r5t D. 8r5t5
Solve the problem.During July in Jacksonville, Florida, it is not uncommon to have afternoon thunderstorms. On average, 10.1 days have afternoon thunderstorms. What is the probability that a randomly selected day in July will not have a thunderstorm? Round to two decimal places, if necessary.
A. 0.67 B. 0.9 C. 0.33 D. 0.66