Write the equation of a sine function that has the given characteristics.Amplitude: 3Period: 4?
A. y = 3 sin (4x)
B. y = sin (4x) + 3
C. y = 3 sin 
D. y = 4 sin 
Answer: C
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 11
- 22
B. 11
- 2
C. 
D. 11
+ 22
Solve the problem.A school auditorium has 38 rows with 25 seats in the first row, 28 in the second row, 31 in the third row, and so forth. How many seats are in the auditorium?
A. 6232 seats B. 6118 seats C. 3059 seats D. 3116 seats
Use the power rules for exponents to simplify. Write the answer in exponential form.(z5)4
A. 5z4 B. (z4)20 C. z20 D. z9
The heights of 300 kindergartners were found to resemble a normal curve. The mean height was 44 inches and the standard deviation was 2 inches. Use the graph to find the requested percents.
Find the percent of heights that are a) between 42 and 46 inches,b) between 40 and 44 inches,c) more than 50 inches, andd) less than 40 inches.
A. a) 95%, b) 47.5%, c) 0.30%, d) 2.5% B. a) 68%, b) 23.75%, c) 0.15%, d) 4.7% C. a) 95%, b) 68%, c) 0.15%, d) 2.5% D. a) 68%, b) 47.5%, c) 0.15%, d) 2.5%