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Colt1911 [192]
3 years ago
10

How do I do this? If anyone can help, that would be great. Thx!

Mathematics
2 answers:
Kisachek [45]3 years ago
8 0
I don’t know ether but it’s easy you add all of them together (wrong just want points don’t use this)
Katen [24]3 years ago
3 0

Answer:

surface area of the cube is length times width and the rectangular prism is 2xlxw+2xlxh+2xwxh then add together

Step-by-step explanation:

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I need help it’s homework and idk how to do it
Volgvan

Answer:

  x = 40 1/2

Step-by-step explanation:

The hash marks tell you the triangles are similar and the smaller one is 1/2 the size of the  larger one. Then x is half the length of the corresponding segment marked 81.

  x = 81/2

  x = 40 1/2

___

You may have to write it as 81/2 or as 40.5. Sometimes the answer needs to be in a particular form.

3 0
3 years ago
Pick the pair of lines that is perpendicular: a. Y = -2/3x + 7 b. Y = 2/3x - 7 c. 4x+ 6y = 12 d. 9x - 6y = 27
Llana [10]

Answer:I think the pair that is perpendicular is

Y=2/3x

6 0
2 years ago
there are 305 crayons in a box and 213 crayons on the floor. About how many fewer than 1000 crayons are there?estimate Then solv
OleMash [197]
305+213=518

1000-518= 482

The answer is there is 482 less crayons then a thousand
6 0
3 years ago
9 times what number minus 7 equals negative seven
kirill115 [55]
9x-7=-7
9x=o
x=0
so the answer....is 0
8 0
3 years ago
Cynthia Besch wants to buy a rug for a room that is 19 ft wide and 32 ft long. She wants to leave a uniform strip of floor aroun
Rainbow [258]

Answer:

The rug should be 15 ft wide and 28 ft long.

Step-by-step explanation:

I have attached a figure that represents the situation.

The the rug is l by h, the width of the strip of floor is w.

We are told that Cynthia can only afford 420 square feet of carpeting; therefore, it must be that

l*h=420 <em>(this says the area of the rug must be 420 square feet)</em>

From the figure we see that

l= 32-2w

h=19-2w

Therefore,

l*h=420\\\\(32-2w)(19-2w)=420

We expand this equation and get:

4w^2-102w+608=420\\\\4w^2-102w+188=0

using the quadratic equation we get two solutions:

w=2\\w=23.5

since the second solution, namely w=23.5, is larger than one of the dimensions of the room (is greater than 19 ft) it cannot be the width of the strip; therefore, we take w=2 to be our solution.

Now we find the dimensions of the rug:

l=32-2(2)=28\\\\h=19-2(2)=15

The rug is 15 ft wide and 28 ft long.

8 0
3 years ago
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