Solve.b - 5 = -6
A. -1
B. 1
C. 11
D. -11
Answer: A
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Perform the indicated operations.(2x - 7)(x - 11)
A. x2 - 29x - 30 B. 2x2 - 30x + 77 C. 2x2 - 29x + 77 D. x2 + 77x - 29
Find the probability.In one town, 32% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that they are both Democrats. Round to the nearest thousandth.
A. 0.102 B. 0.099 C. 0.320 D. 0.640
Matrix A is given. Find appropriate identity matrices Im and In such that ImA = A and AIn = A.A = 
A. Im = 
, In = 
B. Im = 
, In = 
C. Im = 
, In = 
D. Im = 
, In = 
Solve the problem.An electrician is working on a project for which she will need to run straight conduit pipe for lengths of 40 feet, 70 feet, and 100 feet. She wants to precut pieces of pipe to one standard length so that she can connect the pieces to obtain the three lengths she needs. What is the longest length that she can make the precut pieces?
A. 5 ft B. 8 ft C. 12 ft D. 10 ft