x¹ = -2 x² = -8
y¹ = -1 y² = 12
Using midpoint formula,
M = ( x¹ + x²/2 ,y¹ + ý²/2)
or,M ={ -2+(-8)/2 , (-1) +12/2}
or, =( -10/2 , 11/2)
:M = ( -5 , 11/2)
I don’t know i need points sorry so sorry
Given:
Triangle LJK.
LJ = 89 in, LK = 28 in and m∠L = 42°
To find:
The length of missing side JK.
Solution:
LJ = k = 89
LK = j = 28
JK = l = ?
Using law of cosine:
![l^{2}=j^{2}+k^{2}-2 jk \cdot \cos L](https://tex.z-dn.net/?f=l%5E%7B2%7D%3Dj%5E%7B2%7D%2Bk%5E%7B2%7D-2%20jk%20%5Ccdot%20%5Ccos%20L)
Substitute the given values.
![l^{2}=28^{2}+89^{2}-2 \cdot 28 \cdot 89 \cdot \cos 42^\circ](https://tex.z-dn.net/?f=l%5E%7B2%7D%3D28%5E%7B2%7D%2B89%5E%7B2%7D-2%20%5Ccdot%2028%20%5Ccdot%2089%20%5Ccdot%20%5Ccos%2042%5E%5Ccirc)
![l^{2}=784+7921-4984 \cdot (0.7)](https://tex.z-dn.net/?f=l%5E%7B2%7D%3D784%2B7921-4984%20%5Ccdot%20%280.7%29)
![l^{2}=784+7921-4984 \cdot (0.7431)](https://tex.z-dn.net/?f=l%5E%7B2%7D%3D784%2B7921-4984%20%5Ccdot%20%280.7431%29)
![l^{2}=784+7921-3703.6](https://tex.z-dn.net/?f=l%5E%7B2%7D%3D784%2B7921-3703.6)
![l^{2}=5001.4](https://tex.z-dn.net/?f=l%5E%7B2%7D%3D5001.4)
Taking square root on both sides.
![l=70.7](https://tex.z-dn.net/?f=l%3D70.7)
The length of the missing side is 70.7 in.
Answer:
what do u need help with?? :)
Step-by-step explanation:
Answer:
I think Jenny will be able to do 9 pillows with the lace trim.