Factor out the largest possible common factor.80x + 20
A. 5(16x + 4)
B. 4(20x + 5)
C. 20(4x)
D. 20(4x + 1)
Answer: D
Mathematics
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If 
, find a formula for 
.
?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Why does logaa always equal 1 for any valid base a?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify and reduce to lowest terms.
- 
+ 
A. 
B. 1
C. -1
D. 
Mathematics
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Mathematics