Answer:
<h2>-3400</h2>
Step-by-step explanation:
In general, a geometric sequence is given by:
<h3>
a,
ar,
ar^2,
⋯,
ar^n−1 </h3>
In the sequence 20, - 40 , 80,…
First term, a1 = 20
Common ratio, r = - 40 ÷ 20 = - 2
The nth term is = 9th
Sum of finite geometric series : Sn= ( a1 - a1r^n ) / ( 1 - r)
S9 = ( 20 - 20 x (- 2)^9 ) / ( 1 - ( - 2) )
S9 = ( 20 - 20 x - 512 ) / ( 1 + 2 )
S9 = ( 20 - 10240<em> </em>) / ( 3 )
S9 = ( - 10220 ) / 3
<h3>S9 = - 3400 <u>Answer</u> </h3><h2>Hope it's help you.... ^_^❤️</h2>
your answer is going to be x 22 and y 34
Answer:
You will need to draw this out yourself.
Step-by-step explanation:
But to map each point, you find the x (left or right) then y (go up or down).
For example, point A is -1,7
so move one block to the left is -1, move your finger up 7 (line inbetween 6 and 8) that is point A.
Draw for all the others, connect each group of three points to draw the triangle
Answer: 
Step-by-step explanation:
Given
The dimension of the chair is
Suppose, the chair is in a rectangular shape, its Surface area is given by
![\Rightarrow SA=2[lw+wh+lh]\\\\\text{Insert the values}\\\\\Rightarrow SA=2[49\times 28.7+28.7\times 39.6+39.6\times 49]\\\\\Rightarrow SA=2[1406.3+1136.52+1940.4]\\\Rightarrow SA=2\times 4483.22\\\Rightarrow SA=8966.44\ \text{square units}](https://tex.z-dn.net/?f=%5CRightarrow%20SA%3D2%5Blw%2Bwh%2Blh%5D%5C%5C%5C%5C%5Ctext%7BInsert%20the%20values%7D%5C%5C%5C%5C%5CRightarrow%20SA%3D2%5B49%5Ctimes%2028.7%2B28.7%5Ctimes%2039.6%2B39.6%5Ctimes%2049%5D%5C%5C%5C%5C%5CRightarrow%20SA%3D2%5B1406.3%2B1136.52%2B1940.4%5D%5C%5C%5CRightarrow%20SA%3D2%5Ctimes%204483.22%5C%5C%5CRightarrow%20SA%3D8966.44%5C%20%5Ctext%7Bsquare%20units%7D)
