<span>B. ∠1 and ∠9</span>
..................
4 pairs of parallel lines
This is just a geometric sequence with a sum of:
s(n)=a(1-r^n)/(1-r), a=initial term, r=common ration, n=term number
The rate here is 40% which is 0.4 and a=75 meters so
s(n)=75(1-0.4^n)/(1-0.4)
Notice how when n approaches infinity the number becomes just a(1-0), which gives you:
s(n)=75/(1-0.4)
This is a general solution whenever the rate squared is less than 1, the sum of the infinite series will always be:
s(n)=a/(1-r)
So in this case we have:
s(n)=75(1-0.4)
s(n)=75/0.6
s(n)=125 meters.
Answer:
1180
Step-by-step explanation:
10* 8*11
you times all the figures to give you the right answer that is 1180
Answer:
(2,1)
(5,2.5)
(7,3.5)
Step-by-step explanation:
hello There!
We are given an equation and a couple of y values
So to find the x value we plug in the y value into the equation and solve for the x value
for y = 1
1 = x/2
step 1 multiply each side by 2
2x1=2
we're left with x = 2
so we can conclude that when y = 1, x = 2
For y = 2.5
2.5 = x / 2
step 1 multiply each side by 2
2.5 * 2 = 5
we're left with x = 5
so we can conclude that when y = 2.5, x = 5
For y = 3.5
3.5 = x / 2
step 1 multiply each side by 2
3.5 x 2 = 7
we're left with x = 7
so we can conclude that when y = 3.5 , x = 7