Provide an appropriate response.When the numerator is the same as the denominator, for example 
, the fraction is called a(n) 
fraction.
A. whole
B. proper
C. uncommon
D. improper
Answer: D
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Solve the problem. Round your answer to two decimal places.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 105 seconds are required to make a 3-by-5 enlargement, find the time required for a 5-by-10 enlargement.
A. 450 sec B. 400 sec C. 300 sec D. 350 sec
Solve the problem using matrices.Find the function f(x) = ax3 + bx2 + cx + d for which f(0) = -2, f(1) = 5, f(-1) = 3, f(2) = 4.
A. f(x) = 
x3 + 4x2 + 
x - 2
B. f(x) = - 
x3 + 6x2 + 
x - 2
C. f(x) = 10x3 - 18x2 - 13x + 6
D. f(x) = -8x3 +12x2 + 5x - 6
Find the area of the sector formed by central angle ? = 2.6 in a circle of radius r = 4 inches. ? If the answer needs rounding, round it to three significant digits. ? A = __________ in2
Fill in the blank(s) with the appropriate word(s).
Multiply.9 ? (-10) ? 7 ? (-19)
A. -611 B. 11,970 C. -13 D. -11,970