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N76 [4]
4 years ago
13

QUESTION NUMBER 15 TNANKYOU!!!

Mathematics
1 answer:
slavikrds [6]4 years ago
4 0
Volume of a triangular prism is given by V = Al where A is the area of the triangular cross section, i.e. A= \frac{1}{2}bh, and l is the length of the triangular prism.
Here, b = 8cm, h = 9cm, and l = 5cm.
A= \frac{1}{2}bh= \frac{1}{2} \times8 \times9=4\times9=36cm^{2}
Therefore, V=Al=36\times5=180cm^{3}
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Find the area of this circle. Use 3.14 for pie?
pshichka [43]

Answer:

3.141592658

Step-by-step explanation:

3 0
3 years ago
A rectangular box has faces with areas of 12,15, and 20 square units. What is the volume of the box?
miv72 [106K]
First find the side lengths of the box by factoring each area:

12: 1, 2, 3, 4, 6, 12
15: 1, 3, 5, 15
20: 1, 2, 4, 5, 10, 20

Find 3 numbers that both have 2 sides have in common and can multiply to make the areas of the faces:

12: 3 * 4
15: 3 * 5
20: 4 * 5

Sides: 3, 4, and 5

Then multiply to get the volume:

3 * 4 * 5 = 60 units^2

6 0
3 years ago
-11 and 1/6 as a decimal
Nikolay [14]

-11.1666667 should be the answer


7 0
4 years ago
The radius of a circle measures 16 mm what is the circumference of the circle?
Zigmanuir [339]
The formula for the circumference of a circle is 3,14 (pi) x diameter. We know that the radius is half of the diameter so therefore you do 16x2= 32 —> 3,14x32= 100,48mm. Answer: 100.48mm
5 0
3 years ago
Read 2 more answers
I need to solve for x and y. Any help is greatly appreciated! Thank you!
Inessa05 [86]

x=-3, y=1

Step-by-step explanation:

Given equations are:

2x-3y=-9     Eqn 1

x+y = - 2      Eqn 2

From eqn 2:

x=-y-2

Putting x=-y-2 in eqn 1

2(-y-2)-3y=-9\\-2y+4-3y=-9\\-5y-4=-9\\Adding\ 4\ on\ both\ sides\\-5y-4+4=-9+4\\-5y=-5\\Dividing\ both\ sides\ by\ -5\frac{-5y}{-5}=\frac{-5}{-5}\\y=1\\Putting\ y=1\ in\ eqn\ 2\\x+1=-2\\Subtracting\ 1\ from\ both\ sides\\x+1-1=-2-1\\x=-3

Hence,

x=-3, y=1

Keywords: Linear equations, Variables

Learn more about linear equations at:

  • brainly.com/question/4034547
  • brainly.com/question/4054269

#LearnwithBrainly

3 0
4 years ago
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