Answer:
7(x-2)(x+2)
Step-by-step explanation:
7x^2 -28
Factor out a 7
7(x^2 -4)
The terms inside the parentheses is the difference of squares, so it is factorable (a^2-b^2) = (a-b)(a+b)
7(x-2)(x+2)
Round trip is going there and back so it is 2*(6 7/10)=12 14/10=13 4/10=14 2/5
Answer:1) c. 5,9,13,17,21
2) a. a1=8, an=an-1 -2
Step-by-step explanation: 1) an=4n+1
⇒ a1=4×1+1=5
a2=4×2+1=9
a3=4×3+1=13
a4=4×4+1=17
a5=4×5+1=21
2) clearly a1=8 and then the terms of series are decreasing by 2
so, an=an-1 -2
The correct answer for the question that is being presented above is this one: "B. 6/19." Jerry has taken a random sample of students and determined the number of electives that each student in his sample took last year. There were 19 students in the sample.
