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Ivenika [448]
3 years ago
5

An electrician cuts always a 7.2inch long section of drywall to make repairs to the electrical system.He has several scraps of d

rywall he can use to repair the hole.Whats the lengths of drywall that is large enough to repair the hole?
Answers can be

7 2/3. 7 3/4. 7 5/21
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
7 5/21 I think that would be the one that can cover it but not have to much left. 


You might need a second opinion.
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A baker is attempting to construct the world's largest cake. The cake is 12 meters square and 4 meters tall. How much surface ar
Anika [276]

Answer:

The area of the surface that needs to be iced is 480 m².

Step-by-step explanation:

A cake has the same shape as a rectangular prism. A rectangular prism has six faces. The first one is formed by the length and the width, the second is formed by the length and the height and the third is formed by the width and the height, each of these faces is mirrored, so the surface area for the cake is:

surface area = 2*width*height + 2*width*length + 2*length*height

surface area = 2*12*4 + 2*12*12 + 2*12*4

surface area = 96 + 288 + 96 = 480 m²

The area of the surface that needs to be iced is 480 m².

8 0
3 years ago
Read 2 more answers
Please help on number one I’ve been so stuck
Keith_Richards [23]

Answer/Step-by-step explanation:

Ok so x,y. is the first thing you need to know A. 1, -5 = X, -Y.

the number from the x grid goes before the y see the arrows seperating the squares the vertical line is the X any numbers coming off of x go before y ok, x, y.

See the -5, -5 on the bottom right square both of those are negative and since E. is negative (<em>-</em>2, <em>-</em>2) it gets placed in the negative bottom right square ok.

now you see how for some squares there is only 1 number for them well the number on the other side where there is no number is the number. In the top right square there is only 5 on the y line meaning that if u look beyond that and where the other number suppose to be the -5 is there so -5 is the answer for that ok.

(The 0 in the middle is called the "Origin")

Hope this helps! I didn't exactly answer because there's no way to answer without downloading or submitting an image but it wont let me download it for some reason.

<em>Top right square = -5, 5.</em>

<em>C. goes into the top right square</em>

<em>Top left = 5, 5.</em>

<em>B. goes into the top left square</em>

<em>Bottom right square = -5, -5.</em>

<em>E. gets placed in the bottom right square</em>

<em>Bottom left square = 5, -5.</em>

<em>D. gets placed in the bottom left square</em>

<em>A. gets placed in the bottom left square</em>

<u><em>~ LadyBrain</em></u>

3 0
3 years ago
Raul is pouring concrete
g100num [7]

Answer:

wow-

Step-by-step explanation:

Bet he's doing a good job ;)

5 0
3 years ago
Can someone pls help me I will give u brainliest if you do
bogdanovich [222]

Answer: 2x+2y = 100

Step-by-step explanation:

mark me brainlest

4 0
3 years ago
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A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a​ single-strand electric
Luden [163]

Answer:

since the total amount of wire is not given, I looked for a similar question:

  • you have 800 yards of wire at your disposal

since we need to only calculate 3 sides of the land plot, our perimeter will be:

L + 2W = 800

area = L x W

L = 800 - 2W

now we replace:

area = (800 - 2W) x W = 800W - W²

we can write a quadratic equation:

area = -W² + 800W

the vertix of W = -b/2a

the coefficients of our quadratic equation are: -2 and 8

the vertix of W = -800 / (2 x -2) = -800 / -4 = 200 yards

width = 200 yards

length = 800 - (200 x 2) = 400 yards

maximum area enclosed = 200 x 400 = 80,000 sq yards

6 0
3 years ago
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