Answer:
Distributive
Step-by-step explanation:
Geometric series are in the form of
![a +a*r +a*r^2+...](https://tex.z-dn.net/?f=%20a%20%2Ba%2Ar%20%2Ba%2Ar%5E2%2B...%20)
Where a is the first term and r is the common ratio .
And it is given that
![2 +2*r +2*r^2=14](https://tex.z-dn.net/?f=%202%20%2B2%2Ar%20%2B2%2Ar%5E2%3D14%20)
![2r^2+2r-12=0](https://tex.z-dn.net/?f=%202r%5E2%2B2r-12%3D0%20)
![r^2 +r-6=0](https://tex.z-dn.net/?f=%20r%5E2%20%2Br-6%3D0%20)
![(r+3)(r-2)=0](https://tex.z-dn.net/?f=%20%28r%2B3%29%28r-2%29%3D0%20)
r=-3,2
So the first five terms are
![2+2(-3)+2(-3)^2+2(-3)^3+2(-3)^4 or 2+2(2)+2(2)^2+2(2)^3+2(2)^4](https://tex.z-dn.net/?f=%202%2B2%28-3%29%2B2%28-3%29%5E2%2B2%28-3%29%5E3%2B2%28-3%29%5E4%20%20or%202%2B2%282%29%2B2%282%29%5E2%2B2%282%29%5E3%2B2%282%29%5E4%20)
= 2-6+18-54+162 or 2+4+8+16+32
= 122 or 62
The anwser that I know of is 6x+2
Answer:
<CFD =62°
<AFB= 90°
Step-by-step explanation:
here you have a vertical angle, so to simply put it the answer on one side of the angle is the same answer for the opposite side of the angle. knowing this, angle <AFE is 62° and <CFD is on the opposite side making the angle the same(62°). the opposite angle of <AFB is <EFD which is 118° but both <AFB and <AFC equal 118° so you subtract 118° to <AFC degree which is 28° and you get 90°.
i hope this makes sense im not good at explaining. if anyone has a better explanation feel free to correct me.
Hi there!
45 mi to 40 min = 1.125 mi per min
45 ÷ 40 = 1.124
Hope this helps!