A box contains 8 light bulbs, two of which do not work. If two bulbs are selected, the probability of selecting both bulbs that do not work is:
A. 
B. 
C. 
D. 
Answer: C
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The amount remaining A, in grams, of a radioactive substance is a function of time t measured in years. The equation of change for A is
?
.
?
A: What can you conclude about the function 
?B: If there are initially 48 grams of the substance present, find a formula that gives A in terms of t. Write your answer using the alternative form for an exponential function.C: How long will it take before only 
of the original amount is left?
What will be an ideal response?
Insert < or > to make the statement true.0 _____ -57
A. > B. <
Solve the problem.A sawmill trims rough cut boards to look smooth. When a board is rough cut, it is 8 inches wide. When it is trimmed, it is 7
inches wide. How much width was trimmed off?
A. 8
in.
B. 
in.
C. 
in.
D. 
in.
Perform the indicated operations.(3x2 - xy - y2) + (x2 + 7xy + 10y2)
A. 4x2 + 8xy + 11y2 B. 3x2 + 7xy + 10y2 C. 4x2 + 6xy + 9y2 D. 2x2 - 8xy - 11y2