Answer: -18
<u>Explanation:</u>
Average rate of change is slope: . Need to find the y-coordinates:
g(x) = -x² - 4x
g(6) = -(6)² - 4(6)
= -36 - 24
= -60
⇒ (6, -60)
g(8) = -(8)² - 4(8)
= -64 - 32
= -96
⇒ (8, -96)
m =
=
= -18
A piece of wire 13 meters long is attached to the top of a flag pole. The other end
2 answers:
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First things first, write out your equation without the substitution.
2x+ 2y= 10
Now, put in the substitution.
2x+ 2• 2= 10
Combine like terms.
2x+ 4= 10
Now that your equation it simplified, you need to reverse the problem and put everything on the other side.
2x+ 4= 10
- 4 - 4
2x = 6
2x=6
— —
2 2
X= 3
So the final answer is x=3
2x+ 2y= 10
Now, put in the substitution.
2x+ 2• 2= 10
Combine like terms.
2x+ 4= 10
Now that your equation it simplified, you need to reverse the problem and put everything on the other side.
2x+ 4= 10
- 4 - 4
2x = 6
2x=6
— —
2 2
X= 3
So the final answer is x=3
Answer:
80 sets costing $25/set
120 sets costing $45/set
Step-by-step explanation:
let x = number of sets costing $25/set
let y = number of sets costing $45/set
we have to build eqautions form the info given
(1) . total sets = 200 x + y =200
(2) . total sets = 7400 25x + 45y = 7400
use the substitution method
(rest of work shown below in the picture)
