Solve the problem.An experiment is done to determine which of two cleaners cleans better. Twelve lab technicians test each kind of cleaner and give it a rating from 1 to 10. The results are in the two tables below. Which type of cleaner is better? Cleaner X Cleaner Y9 6 7 6 6 7 7 26?2?9?6?2?6?6?26?6?7?2?6?2?9?6
A. Cleaner Y
B. Cleaner X
Answer: B
Mathematics
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Find the required value by setting up the general equation and then evaluating.Find y when x = 28 if y varies directly as x, and y = 12 when x = 16.
A. 21
B. 
C. 7
D. 28
Mathematics
Factor the expression over the set of complex numbers
?
What will be an ideal response?
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.x7 + 10x6 + 9x5
A. x5(x2 + 10x + 9) B. x5(x + 9)(x + 1) C. x5(x - 9)(x + 1) D. x5(x + 9)(x - 1)
Mathematics
Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 
; r = 
A. a5 = 5
, an = 5n/2-1
B. a5 = 3125, an = 5n
C. a5 = 625
, an = 5n-1/2
D. a5 = 25
, an = 5n/2
Mathematics