Answer:
The answer is B
Step-by-step explanation:
lol i had the same question
we can use formula

we can compare
we get
a=x
b=2
now, we can plug that in formula
and we get

now, we can simplify it
...........Answer
When a tangent line (13.5 cm) and a secant (lines x + 8.45 cm) intersect then:
tangent line^2 = 8.45 * (8.45 + x)
13.5^2 = 71.4025 + 8.45 x
182.25 -71.4025 = 8.45x
8.45 x = 110.8475
x = 13.1180473373
x = 13.1 (rounded)
Source:
1728.com/circangl.htm
This is simple multiplication
do 2*4 and 10*4
so you get f(x)=8 and x=40
if you wanna do it by doing division do
2=10
f(x)=40
cross multiply then divide
so do 2*40 to get 80
then do 80/10 to get 8