Factor the polynomial by grouping.8x2 - 12x + 10x - 15
A. (4x + 5)(2x - 3)
B. (8x - 5)(x + 3)
C. (8x + 5)(x - 3)
D. (4x - 5)(2x + 3)
Answer: A
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The decibel level D, a measure of loudness, is related to the relative intensity I of sound by the formula
.
?
Express relative intensity as a function of decibels.
?
A. 
B. 
C. 
D. 
Solve.The circle graph shows the fraction of books read by grades one through five. What fraction of books was read by the fifth and third grades combined?
A. 
B. 
C. 
D. 
Find the real zeros of the function. List the x-intercepts of the graph of the function.Q(x) = (2x + 5)2 - 7(2x + 5) + 6
A. x = - 
, x = 2
B. x = 6, x = 1
C. x = 
, x = - 2
D. x = 
, x = 3
Write the first four terms of the sequence.an = 4n
A. a1 = 1, a2 = 16, a3 = 81, a4 = 256 B. a1 = 1, a2 = 4, a3 = 16, a4 = 64 C. a1 = 4, a2 = 16, a3 = 64, a4 = 256 D. a1 = 16, a2 = 64, a3 = 256, a4 = 1024