Solve the problem.The graph of a trigonometric function f represented by f(t) = a sin (b(x - c)) is shown, where a, b, and c are nonnegative. State the period.
A. 8
B. 8?
C. 4?
D. 2.5?
Answer: B
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Solve the problem.One number is four more than a second number. Two times the first number is 8 more than four times the second number.
A. - 8 and - 12 B. 4 and 0 C. 5 and 1 D. 3 and - 1
Solve the problem.Andy has 37 coins made up of quarters and half dollars, and their total value is $13.50. How many quarters does he have?
A. 25 quarters B. 17 quarters C. 20 quarters D. 19 quarters
Factor the expression completely. If the polynomial is prime, state this as your answer.x9 - 216
A. (x3 - 6)(x3 - 6x3 - 36) B. (x3 + 6)(x6 + 6x3 - 36) C. (x3 + 6)(x6 - 6x2 + 36) D. (x3 - 6)(x6 + 6x3 + 36)
Solve the problem.The value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money market account. The value of your investment t years after 2000 is given by the exponential growth model A = 8,500e0.065t. By what percentage is the account increasing each year?
A. 7.2% B. 6.7% C. 6.9% D. 7.1%