Answer the question as instructed.Which of the following statements is true?
A. 12 < 6
B. 12 > 6
C. 6 > 6
D. 6 ? 6
Answer: B
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Solve.Professor Chang will give a student in her algebra class an A if his or her final score is at least 93, a B if the score is between 84 and 92, inclusive, and a C if the score is between 75 and 83, inclusive. Any student with a score between 66 and 74, inclusive, will receive a D, and anyone with a score at or below 65 will fail with a grade of an F. Letting x represent a student's grade, write a series of five inequalities corresponding to the possible grades given in the class
A.
x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
x ? 65 | F |
B.
x ? 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
x ? 65 | F |
C.
x ? 93 | A |
75 ? x < 83 C
66 ? x < 74 D
x ? 65 | F |
D.
x > 93 | A |
75 ? x ? 83 C
66 ? x ? 74 D
x < 65 | F |
Solve.The formula for calculating simple interest is I = prt. If the amount of interest, I, is $33.60, the principal (amount of money invested), p, is $210.00, and the rate of interest, r, is 8%, find the amount of time, t.
A. t = 0.2 yr B. t = 564.48 yr C. t = 5.6448 yr D. t = 2 yr
Graph the function.f(x) = log1/4(x + 2)
A.
B.
C.
D.
Use a proportion to solve the problem.The ratio of the lengths of strings that play the notes D and A is 3 to 2. If a string 96 centimeters long plays a D, what is the length of the string that plays an A?
A. 98 centimeters B. 144 centimeters C. 64 centimeters D. 99 centimeters