For the first one Y = -6
3x + 2Y = -16
-2y -2y
3x = -18y
— —
3x 3x
Then divide -18y divided by 3X
To get Y= -6
Hope that helped!
Answer:
Option C. ![98^{\circ}](https://tex.z-dn.net/?f=98%5E%7B%5Ccirc%7D)
Step-by-step explanation:
(the two angles sum to the angle of a straight line:
)
![122+\angle BAC = 180](https://tex.z-dn.net/?f=122%2B%5Cangle%20BAC%20%3D%20180)
![\angle BAC = 180-122](https://tex.z-dn.net/?f=%5Cangle%20BAC%20%3D%20180-122)
![=58^{\circ}](https://tex.z-dn.net/?f=%3D58%5E%7B%5Ccirc%7D)
(sum of interior angles of triangle is
)
![82+x=180](https://tex.z-dn.net/?f=82%2Bx%3D180)
![x=98^{\circ}](https://tex.z-dn.net/?f=x%3D98%5E%7B%5Ccirc%7D)
∴ Option C is correct.
Hope this helps :)
Answer:
21.6 m long
Step-by-step explanation:
To do this, we find the scale factor of the fencepost and the shadow.
3/1.8 = 1.66666667
So, we know that when we take the original length and multiply it, we get the new one, so:
1.666666667 * x = 36
x being the original length. Now, we divide both sides by 1.66666667 to get x alone and find the original length.
x = 21.6
To double check, we can take the scale factor and multiply it by the original to get the shadow.
21.6 * 1.666666667 = 36
It is correct
Answer:
C
Step-by-step explanation:
Find the difference between $94.79 and $89.00 then do (5.79/89)*100 which is 6.50561797753, then round the initial answer so you get 6.50
Have a great day <3