Answer:
12
Step-by-step explanation:
Answer:
<h2>52 ft.</h2>
Step-by-step explanation:
In this case, we need to calculate a perimeter, which is the sum of all sides of the rectangle.
So, rectangles has opposite sides equal, therefore, the perimeter should be:
; having L as the larger side.
![P=2(14+12)\\P=2(26)\\P=52](https://tex.z-dn.net/?f=P%3D2%2814%2B12%29%5C%5CP%3D2%2826%29%5C%5CP%3D52)
Hence, the strip of wallpaper needs to be as least 52 ft.
Answer:
15
Step-by-step explanation: You would think 15. 810 copies every 9, minutes. Nine divided by 810 equals 90. 90 copies every minute. 1,350 divided by 90 is fifteen. =fifteen.
Answer: y = -2|x| + 1
Step-by-step explanation: it is an absolute value function, y = |x|, moved up one. then we see that it has been flipped. it has also been vertically stretched by a factor of 2.
Answer:
![\large\boxed{a=-3,\ b=-7\ and\ c=3}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Ba%3D-3%2C%5C%20b%3D-7%5C%20and%5C%20c%3D3%7D)
Step-by-step explanation:
![ax^2+bx+c=0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%3D0)
We have:
<em> subtract 7a from both sides</em>
![-3a^2-7a=7a-7a-3](https://tex.z-dn.net/?f=-3a%5E2-7a%3D7a-7a-3)
<em>add 3 to both sides</em>
![-3a^2-7a+3=-3+3\\\\-3a^2-7a+3=0\to a=-3,\ b=-7, c=3](https://tex.z-dn.net/?f=-3a%5E2-7a%2B3%3D-3%2B3%5C%5C%5C%5C-3a%5E2-7a%2B3%3D0%5Cto%20a%3D-3%2C%5C%20b%3D-7%2C%20c%3D3)