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gulaghasi [49]
2 years ago
5

A triangle has a perimeter of 91 centimeters. Each of the two longer sides of the triangle is three times as long as the shortes

t side. Find the length of each side of the triangle.
Mathematics
1 answer:
Mkey [24]2 years ago
4 0

9514 1404 393

Answer:

  13 cm, 39 cm, 39 cm

Step-by-step explanation:

If x is the short side, then the other two sides are 3x and 3x. The perimeter is the sum of side lengths:

  x +3x +3x = 91

  x = 91/7 = 13

  3x = 3(13) = 39

The length of the short side is 13 cm; the other two sides are 39 cm.

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Evaluate the expression 2(8 - 4)^2 - 10 / 2
Artemon [7]
2(8-4)^2-5
16-32-5
-21





you can change the -10/2 to a -5 and it will be easier.
5 0
3 years ago
Read 2 more answers
Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
Elena-2011 [213]

The answer is 15,183.77 feet.

5 0
3 years ago
Q3<br> Help pls.. urgent!
Komok [63]
Alright, so 3f-g=4 and f+2g=5. 
3f-g=4
f+2g=5
Multiplying the first equation by 2 and adding it to the second, we get 7f=13 and by dividing both sides by 7 we get f=13/7. Since f+2g=5, then we can plug 13/7 in for f to get 13/7+2g=5. Next, we subtract 13/7 from both sides to get 2g=3+1/7=22/7 (since 3*7=21 and 21+1=22). DIviding both sides by 2, we get 22/14=g. Plugging that into f/39g, we get (13/7)/(22*39/14)
= (13/7)/(858/14) 
= (13/7)*(14/858)
=182/6006
= 91/3003 (by dividing both numbers by 2)
= 13/429 (by dividing both numbers by 7)
 = 1/33 (by dividing both numbers by 13)
7 0
3 years ago
Please help 10 points to the one who answers correctly and tells me how to solve it.
Goshia [24]
Y = 76    x = 16 Sorry if I am wrong

Hope it helped
4 0
2 years ago
Answer part A, B, and C. (28 points)
mart [117]

A)

Two sides are 8 x 2 = 16 x 2 = 32 sq. in.

Two sides are 11 x 2 = 22 x 2 = 44 sq. in.

Top is 8 x 11 = 88 sq. in.

Total surface area: 32 + 44 + 88 =  164 square inches.

B) Area of a circle = PI x r^2

Area = 63.585

63.585 = PI x r^2

Using 3.14 for PI:

63.585 = 3.14 x r^2

Divide both sides by 3.14:

r^2 = 63.585 / 3.14

r^2 = 20.25

r = √20.25

radius = 4.5 inches.

C)

Diameter = radius x 2

Diameter = 4.5 x 2 = 9 inches.

3 0
3 years ago
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