Complete the factoring.21x5 = 3x( )
A. 63x6
B. 7x
C. 7x4
D. 63x4
Answer: C
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Identify the specified numbers.The imaginary numbers in the following list:
, 9, 
, -6.8, -0.22, 
, 
, 
A. 
, 
, 
B. 
, 
, 
, 
, 
C. 
, 
, 
D. 
, 9, 
, -6.8, -0.22, 
, 
, 
Multiply, then simplify the product. If variables are present, assume they are positive.(
+ y)(
- y)
A. 12x
B. x + 2y
C. x - 2y
D. 11x - y2
Write a polynomial f(x) in complete factored form that satisfies the conditions. Let the leading coefficient be 1.Degree 5; zeros: -6 with multiplicity 4, and 4 with multiplicity 1
A. f(x) = (x - 4)4(x - 6) B. f(x) = (x + 4)4(x - 6) C. f(x) = (x + 6)4(x - 4) D. f(x) = (x - 6)4(x + 4)
Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent.The average runner at a local college runs the mile in 4.5 minutes, with a standard deviation of .3 minutes. What is the probability that a person will run a mile in less than 4 minutes?
A. 5% B. 3% C. 4% D. 7%