Answer:
127.5
Step-by-step explanation:
The given series is 26 + 24.5 + 23 + 21.5 + ... - 17.5
The first term of this series is a=26
The common difference is d=24.5-26=-1.5
The last term of the series is -17.5
The nth term is given by:




n=30
The sum of the series:



The answer is .6 repeating.
Answer:
plzz mark me brainlieat if it helps you
x+67 + x+127 = 180
or, 2x + 194 = 180
2x = - 14
: . x = -7
To find the midpoint of a line use the midpoint formula which is M = (x1+x2/2 , y1 +y2/2) After plugging in the coordinates for your variables you should get (-1+5/2, -1+2/2) This simplifies to (2, 1/2) which is the coordinates for the middle point of the base XY.
8cm
6/3=y/4 ________ cross multiply
3y=24 ________ divide by 3
y=8