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____ [38]
3 years ago
8

Please show me how to do #11.

Mathematics
1 answer:
Elodia [21]3 years ago
5 0
Do number 11 in your own way.
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Find the total surface area of the triangular prism
GuDViN [60]

Answer:

1,008\:\mathrm{cm^2}

Step-by-step explanation:

The total surface area of this triangular prism consists of three rectangles and two triangles. Adding the areas of each of these shapes allows us to find the total surface area of this 3D figure:

Area of both triangles:

2\cdot \frac{1}{2}\cdot12\cdot 14=168\:\mathrm{cm^2}

Area of all three rectangles:

15\cdot 20 +13\cdot 20+14\cdot 20=840\:\mathrm{cm^2}

Therefore, the total surface area of this figure is:

840+160=\fbox{$1,008\:\mathrm{cm^2}$} \: \checkmark

3 0
3 years ago
rudie earn 942 each month. last month gis fixed expense month were 625 and his variable expenses were 259. how much did he save
mel-nik [20]

Answer:

He saved 58 last month.

Step-by-step explanation:

All expenses: 625 + 259 = 884

Total earned: 942 - 884 = 58

7 0
3 years ago
Which statement is most likely to be true for this distribution
andreyandreev [35.5K]

Answer:

the mean is greater than the median

5 0
3 years ago
Read 2 more answers
Please help |3r -6| =21
julsineya [31]

3r-6=-21

3r-6+6=-21+6 (Add 6 to both sides...)

3r=-15

r=-5


3r-6=21

3r-6+6=21+6 (Add 6 to both sides...)

3r=27

r=9



r=-5 or r=9

8 0
3 years ago
Read 2 more answers
Six less than two times a number is no more than 7
ziro4ka [17]

Answer:

n <=6.5

Step-by-step explanation:

Six less than two times a number is no more than 7

2n-6 <=7

Add 6 to each side

2n-6+6 <=7+6

2n <=13

Divide by 2

2n/2 <=13/2

n <=6.5

3 0
3 years ago
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