A = L x W
L = W + 3
so equation
A = W (W + 3)
70 = W (W + 3)
or
W (W + 3) = 70
answer
D. last one
W (W + 3) = 70
Answer:
Step-by-step explanation:
First add 5x to 12x which becomes 17x and subtract 8 from 12 which becomes 4. So the answer is 17x+4!
where's the graph? ( ಠ_ಠ)
Answer:
<em>The common ratio of the geometric sequence is -4</em>
Step-by-step explanation:
<u>Geometric Sequence</u>
A geometric sequence is defined as a series of numbers that follow a fixed pattern: Each term equals the previous term times a fixed number called the common ratio. The recursive formula is:
![a_n=a_{n-1}*r](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2Ar)
Where r is the common ratio.
We are given three terms of a geometric sequence:
18,-72,288,...
To find the common ratio, just divide each term by the previous term:
![\displaystyle r=\frac{-72}{18}=-4](https://tex.z-dn.net/?f=%5Cdisplaystyle%20r%3D%5Cfrac%7B-72%7D%7B18%7D%3D-4)
Make sure it's a fixed number and test with the third term:
![\displaystyle r=\frac{288}{-72}=-4](https://tex.z-dn.net/?f=%5Cdisplaystyle%20r%3D%5Cfrac%7B288%7D%7B-72%7D%3D-4)
Since both numbers coincide, the common ratio of the geometric sequence is -4