Use A: to find the value of x. In order to find that you would have to match one part of the proportion. x should be the numerator over 15 and 12 should be over 20 (The total length of that side of the triangle). Good luck. : )
Answer:
-3
Step-by-step explanation:
23=-5x+8
23-8=-5x
15=-5x
x=-3
The two points are (-2,3) and (10,3)
The x coordinates of each point are -2 and 10. Add them up and we get -2+10 = 8. Cut this in half to get 8/2 = 4
This is the x coordinate of the midpoint
Do the same for the y coordinates.
Add them up: 3+3 = 6.
Divide by 2: 6/2 = 3
This is the y coordinate of the midpoint
The midpoint is therefore (4,3)
(10g^3 - 8g^2 + g - 14)(10g^2 + g)
Multiply eah term by 10g^2 and then add it to each term times g
100g^5 - 80g^4 + 10g^3 - 140g^2 + 10g^4 - 8g^3 + g^2 - 14g)
Combine like terms
100g ^5 - 80g^4 + 10g^4 + 10g^3 - 8g^3 - 140g^2 + g^2 - 14g
100g^5 - 70g^4 + 2g^3 - 139g^2 - 14g
Answer: 100g^5 - 70g^4 + 2g^3 - 139g^2 - 14g
hope it helps :)
