Answer:
1/8 room
Step-by-step explanation:
(3/4 roll)/(6 rolls/room) = (3/4)(1/6) rooms = 1/8 rooms
With 3/4 roll of wire, the electrician can wire 1/8 of a room.
Answer:
Let's split the figure first:
9 x 5 = 45(area of small rectangle on top)
18 - 5 = 14(height)
17 - 9 = 8(width)
14 x 8 = 112(area of rectangle in the middle nearly)
18 - 5 = 14(base)
5(base 1) + 14(base 2) = 19
17 - 9 = 8(height)
19 x 8 = 152
152 divided by 2( x 1/2) = 76(area of a trapezoid on the side)
Now let's add all the given areas:
45 + 112 + 76 = 233 in^2 is your answer.
Use a graphing tool and you'll see a circle form. This circle has a center of (0,0) and radius of 4. Side note: this equation is equivalent to x^2+y^2 = 16 after you divide everything by 4
Looking at the graph, the smallest x can be is -4. The largest x can be is 4. So the domain in interval notation is
![[-4,4]](https://tex.z-dn.net/?f=%5B-4%2C4%5D)
Similarly the range in interval notation is also <span>
![[-4,4]](https://tex.z-dn.net/?f=%5B-4%2C4%5D)
because the lowest you can go is y = -4. The highest you can go is y = 4</span>