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jasenka [17]
3 years ago
6

Really need help pls

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
3 0

Answer:

∠1 = 45°

∠2 = 45°

∠3 = 45°

∠4 = 90°

BC = 12

AB = 12

DC = 12

EB = 8.5

DB = 17

EC = 8.5

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Brooke paints the outsides of the square walls and triangular ceilings of her treehouse. What is the area?
Zielflug [23.3K]

Answer:

The answer is "216\ ft^2"

Step-by-step explanation:

Please find the graph file in the attachment.

The area of its tree house's outsides of the square walls and triangular ceilings is equivalent to four squares with four triangles,

\to A=4[(6)^2+\frac{1}{2} (6)(6)]\\\\

       =4[36+\frac{1}{2} (36)]\\\\=4[36+18]\\\\=4[ 54]\\\\=216\ ft^2

6 0
3 years ago
The sides of an oblong are in the ratio of 4:3. The oblong has a length of 12 cm and is increased by a scale factor of 2.5. What
Aleksandr [31]

Answer:

If the scale factor is increased in 2.5, the increased width will be:

  • <u>22.5 cm</u>

Step-by-step explanation:

Remember that an oblong is longer than it is wide, by this reason, the ratio of 4:3 could mean, if we give a number, by each 4 cm in the length, there is 3 cm in the width, in this form, if the oblong has a length of 12 cm, the width is:

  • 4 cm ⇒ 3 cm
  • 12 cm ⇒ x

So:

  • x=\frac{12 *3}{4}
  • x=\frac{36}{4}
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Then, the original width is 9 cm, as the scale factor must be increased 2.5, we can multiply the found width to obtain the increased width:

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As you can see, <u><em>the increased widt will be 22.5 cm</em></u>.

4 0
3 years ago
Help please anybody
Sedbober [7]

put in an positive number for x and check

2 - 5 = -3

5 - 2  = 3

- 2 + 5 = 3

5 + (-2) = 2

so the only different one is the first

4 0
3 years ago
Please help me with 8 im so very stuck i know how to do those but nothing will factor into eachother
Kisachek [45]

Answer:

lol number 8 is x= i, -i , \frac{3}{4}, -4 so u are correct.

and number 7 is x=-\frac{1}{2} or \sqrt[5-i]\sqr\frac{23}{8}

Step-by-step explanation:

7 0
3 years ago
A sweater originally costs $36. If the sweater is on sale for $30.24 what is the percent of the discount
skelet666 [1.2K]
I think not sure but i think the discout is $5.76
5 0
3 years ago
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