Step-by-step explanation:
![x = 105 \\ is \: the \: correspoding \: angel \\ \\ (3z - 9) + 105 = 180 \\ \\ 3z - 9 + x= 180 \\ \\ 180 - 96 \\ \\ 3z = 84 \\ \\ z = \frac{84}{3} \\ \\ z = 28](https://tex.z-dn.net/?f=x%20%3D%20105%20%5C%5C%20is%20%5C%3A%20the%20%5C%3A%20correspoding%20%5C%3A%20angel%20%5C%5C%20%20%5C%5C%20%283z%20-%209%29%20%2B%20105%20%3D%20180%20%5C%5C%20%20%5C%5C%203z%20-%209%20%2B%20%20x%3D%20180%20%5C%5C%20%20%5C%5C%20180%20-%2096%20%5C%5C%20%20%5C%5C%203z%20%3D%2084%20%5C%5C%20%20%5C%5C%20z%20%3D%20%20%5Cfrac%7B84%7D%7B3%7D%20%20%5C%5C%20%20%5C%5C%20z%20%3D%2028)
because x = 75 is the corresponding angel
and x value was 75 then (3z-9) was straight angel they are sum was 180 degree. my answer was wrong please report
Answer:
(x+3)(x+5)
Step-by-step explanation:
what two numbers will multiply to 15 and add up to 8?
3 and 5
so
(x+3)(x+5)
So first we need to find how much road they have built already this week (on Monday and Tuesday).
We are told that Monday they built
mile and on Tuesday they built
mile. So let's add them together. We'll use a denominator of 12, since that is a common factor to both of them. What you do to the bottom of the fraction you must do to the top:
![\frac{2}{3}=\frac{8}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%3D%5Cfrac%7B8%7D%7B12%7D%20%20%20)
![\frac{1}{4}=\frac{3}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%3D%5Cfrac%7B3%7D%7B12%7D%20%20%20)
So now that we have a common denominator, we can add them together:
![\frac{8}{12}+\frac{3}{12}=\frac{8+3}{12}=\frac{11}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%7D%7B12%7D%2B%5Cfrac%7B3%7D%7B12%7D%3D%5Cfrac%7B8%2B3%7D%7B12%7D%3D%5Cfrac%7B11%7D%7B12%7D%20%20%20%20%20)
They built
mile of road so far this week. If they need to build 3, we need to subtract
from 3 to find how much remains. Let's get 3 to a number of 12 so we have a common denominator:
![\frac{3}{1}=\frac{36}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B1%7D%3D%5Cfrac%7B36%7D%7B12%7D%20%20%20)
Now let's subtract:
![\frac{36}{12}- \frac{11}{12}= \frac{25}{12}=2\frac{1}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B36%7D%7B12%7D-%20%5Cfrac%7B11%7D%7B12%7D%3D%20%5Cfrac%7B25%7D%7B12%7D%3D2%5Cfrac%7B1%7D%7B12%7D%20%20%20)
So now we know that the amount of road left that they must build this week is
mile.
Step-by-step explanation:
therefore x+6=0
x = -6 hope this helps and you understand it.