Add 6.5 to both sides
D=-0.7
A
Answer:
100000000
Step-by-step explanation:
(10^4)^2 key =
{(2.5)^4}^2 . = times
(2^4 . 5^4)^2
(2^4) ^2 (5^4)^2
2^4 ^.2. 5^4^.2
2^8 . 5^8
256. 390625
100000000
Answer:
220 miles
Step-by-step explanation:
65 miles per hour for 2 hours — 65+ 65 = 130
60 miles per hour for 1.5 hours — 60 (for the 1 hour) + 30 (for the half hour) = 90
130 + 90 = 220
Answer:
See attachment
Step-by-step explanation:
The given system is :
![y = - x + 5](https://tex.z-dn.net/?f=y%20%3D%20%20-%20x%20%2B%205)
![y = \frac{1}{4}x + 10](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B4%7Dx%20%2B%2010)
Let us equate both equations and solve for x.
![- x + 5 = \frac{1}{4}x + 10](https://tex.z-dn.net/?f=%20-%20x%20%2B%205%20%3D%20%20%5Cfrac%7B1%7D%7B4%7Dx%20%2B%2010)
![- 4x + 20 = x + 40](https://tex.z-dn.net/?f=%20-%204x%20%2B%2020%20%3D%20x%20%2B%2040)
![20 - 40 =x + 4x](https://tex.z-dn.net/?f=20%20-%2040%20%3Dx%20%2B%204x)
![- 20 = 5x](https://tex.z-dn.net/?f=%20-%2020%20%3D%205x)
![x = - 4](https://tex.z-dn.net/?f=x%20%3D%20%20-%204)
![y = - - 4 + 5 = 9](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20-%204%20%2B%205%20%3D%209)
The the two lines of this system will meet at (-4,9)
The graph is shown in the attachment.
Answer:
The measure of angle 6 is 72.
The measure of angle 7 is 108.
Step-by-step explanation:
Corresponding angles are equal. So angle 1, 3, 5 and 7 are all equal.
If you look at angle 1 and 2, they are adjacent angles, so together they add up to 180. So if you subtract 108 from 180 you get 72... and we already established that all corresponding angles are equal, so if angle 2 is 72 degrees, we can conclude that angle 6 is as well.