9514 1404 393
Answer:
AC ≈ 7.3
Step-by-step explanation:
Corresponding sides of similar triangles are proportional.
AC/BC = DF/EF
AC/18 = 15/37 . . . . fill in the given values
AC = 18(15/37) . . . multiply by 18
AC ≈ 7.3
Answer:
88.67
Step-by-step explanation:
divide 532 from 6
532/6 = 88.67
Answer:
hay I'm sorry that I can't give you the answer but is it okay that we talk as friends
On-proportional linear relationships can be expressed in
the form y = mx + b, where b is not 0, m represents the constant rate of change
or slope of the line, and b represents the y-intercept. The graph of a non-proportional
linear relationship is a straight line that does not pass through the origin.
1. find equation
general solutions are:
![y = a x^{2} +bx +c \\ \\ \frac{dy}{dx} = 2ax +b](https://tex.z-dn.net/?f=y%20%3D%20a%20x%5E%7B2%7D%20%2Bbx%20%2Bc%20%5C%5C%20%5C%5C%20%5Cfrac%7Bdy%7D%7Bdx%7D%20%3D%202ax%20%2Bb)
for P(0,-11)
![-11 = 0a + 0b +c](https://tex.z-dn.net/?f=-11%20%3D%200a%20%2B%200b%20%2Bc%20)
⇒
![c = -11](https://tex.z-dn.net/?f=c%20%3D%20-11)
for p(1,-13)
![-13 = 1a + 1b -11 \\ a+b = -2](https://tex.z-dn.net/?f=-13%20%3D%201a%20%2B%201b%20-11%20%5C%5C%20a%2Bb%20%3D%20-2)
and
![0 = 2a + b \\ b = -2a](https://tex.z-dn.net/?f=0%20%3D%202a%20%2B%20b%20%5C%5C%20b%20%3D%20-2a)
solve for a and b:
![a - 2a = -2 \\ a = 2 \\ b = -4](https://tex.z-dn.net/?f=a%20-%202a%20%3D%20-2%20%5C%5C%20a%20%3D%202%20%5C%5C%20b%20%3D%20-4)
the total equation is now:
![y = 2 x^{2} -4x -11](https://tex.z-dn.net/?f=y%20%3D%202%20x%5E%7B2%7D%20-4x%20-11)
To find the x-intercept set y=0 and solve for x