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Sidana [21]
3 years ago
13

I need an answer for this

Mathematics
2 answers:
Misha Larkins [42]3 years ago
5 0

Answer:

756 cm^2

Step-by-step explanation:

9 x 12 = 108 triangles

9 x 18 = 162 back side

9^2 + 12^2 = c^2

9^2 + 12^2 = 225

9^2 + 12^2 = 15^2

length of the hypotenuse is 15 so

15 x 18 = 270 slanted top

18 x 12 = 216 bottom

216 + 270 + 162 + 108 = 756 cm^2

RUDIKE [14]3 years ago
4 0

Answer:

Step-by-step explanation:

18+12+9

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How do i calculate the first quartile and the third quartile??? <br> !!!please help!!!
diamong [38]

Answer: The Median: 78, The First Quartile: 63, and The Third Quartile: 99

Step-by-step explanation: Ok, so let's put the data set from least to greatest....

(63, 63, 76,) (77, 79,) (84, 99, 99)

First Quartile              Third Quartile

First, let's find the median, since you made a little mistake...

77 + 79 = 156

156 ÷ 2 = 78

The median is 78!

Now, let's determine the first quartile and the third quartile.

For the the first quartile/third quartile it'll be the middle number, if it's even we'll do the same extra step just like we'll do for the median. In this case it's not even therefore...

First Quartile: 63

Third Quartile: 99

I hope this helps!

5 0
2 years ago
= 28.16
frosja888 [35]

Answer:

20 m

Step-by-step explanation:

4(3+2) = 20

8 0
2 years ago
Solve the following system of equations by linear combination: 3d – e = 7 d + e = 5
SashulF [63]
3d - e = 7d + e = 5   ⇒   3d - e = 5 
                                       7d + e = 5


 3d - e = 5 
 7d + e = 5          +
-----------------------
10d / = 10
10d = 10
d = 10/10
d = 1

 7d + e = 5
7×1 + e = 5
7 + e = 5
e = 5 - 7
e = -2

8 0
3 years ago
8,205,000 in expanded form
const2013 [10]
8,000,000 + 200,000 + 5,000
8 0
3 years ago
If x =7/8 cm, y =1/4 cm, and z = 5/8 cm, what is the volume of the rectangular prism above?
lesantik [10]
I could help you if you label which one is the length which one it the width and which one is the height.
6 0
2 years ago
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