Answer:
900°
Step-by-step explanation:
Sum of angles= 180(n-2)
Where n= number of sides of polygon.
![n=7\\Sum \ of \ Angles=180(7-2)\\=900](https://tex.z-dn.net/?f=n%3D7%5C%5CSum%20%5C%20of%20%5C%20Angles%3D180%287-2%29%5C%5C%3D900)
Answer:
The correct answer is 1/2 or 0.5
Step-by-step explanation:
8(15-4)/4^2-5
8(11)/4^2-5
Now i'm going to multiply 8 by 11
88/4^2-5
Now solve 4^2
Which is 16.
Now we have 88/16-5
Divide 88 and 16 which is 5.5.
Now minus 5.5 - 5 which gets us our answer: 0.5
Answer:
The student is expected to spend <em>15.4 hours </em>doing homework
Step-by-step explanation:
The scattered plot shows there is a close correlation between the variables. A line of best fit will go through the 'center' of the points. Since we are not required to find an exact line, we'll draw it in red color as shown below
To know the equation of that line, we must take two clear points of it from the graph. We'll pick (28,4) and (4,25)
The equation of a line, given two points (a,b) and (c,d) is
![\displaystyle y-b=\frac{d-b}{c-a}(x-a)](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y-b%3D%5Cfrac%7Bd-b%7D%7Bc-a%7D%28x-a%29)
Using the selected points
![\displaystyle y-4=\frac{25-4}{4-28}(x-28)](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y-4%3D%5Cfrac%7B25-4%7D%7B4-28%7D%28x-28%29)
Simplifying and computing results, the equation is
![\displaystyle y=-\frac{7}{8}x+\frac{57}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%3D-%5Cfrac%7B7%7D%7B8%7Dx%2B%5Cfrac%7B57%7D%7B2%7D)
Using that equation, we can predict how many hours the students will spend doing homework if they spend 15 hours watching TV
=15.4 hours
So the student is expected to spend 15.4 hours doing homework
Answer:
0r
Step-by-step explanation:
Since they all have r you can pretend it s not there and add it on at the end.
Now 10 - 5 is 5. 5 + 3 is 8. 8 - 8 is 0. tack the r onto the end and you get 0r.
A=P(1+rt)
A/P=1+rt
A/P-1=rt
AP-P/Pr = t
A-1/r=t