Answer:
16 9/25 then 13/25 then 7/20 then -0.36
Concentric circles because if a line is tangent to one circle, it would only intersect teh other
You must factor.

The factored form is equal to the assigned form.

Values a, b correspond to the factored 1, -1.
Value of x however remains unknown. But we can change that.
Given factored result,

We can set expression equal to 0 then find such x that when added with number a or b results with 0.

Hence x has 2 solutions.

Hope this helps.
Answer:
The 2nd number in the sequence is 
Step-by-step explanation:
Let the six even numbers be 2x,2x+2,2x+4,2x+6,2x+8,2x+10
We are given that The sum of 6 even integers is 130.
So,2x+2x+2+2x+4+2x+6+2x+8+2x+10=130
12x+30=130
12x=100

So,the 2nd number in the sequence is 
Answer:
V = 196 mm³
Step-by-step explanation:
( 7/21 )³ = V / 5292
343 / 9261 = V / 5292
9261 V = 343 * 5292
V = 196 mm³