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Minchanka [31]
3 years ago
6

Calculate the area of each triangle using two different methods

Mathematics
1 answer:
timurjin [86]3 years ago
4 0
The area of a triangle is 1/2 bh
so to find the area of the larger triangle do the following calculation:
1/2 time 12 time 7. that will give you 42 ft squared.  that is the larger triangle. 
the next way to find the area i will show you is:

pretend that the the triangle is inside of a rectangle. now you have 4 triangles. you know that the base of the rectangle is 15 ft anf the height is 7. now take the smaller triangle and it has its rectangle base 3 and height 7. multiply to get 21 feet squared. divide by 2 since there are 2 triangles in the small rectangle. 10.5 feet squared
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3x^2y^3+5x^3y^3-6+x^3y^2-2
klasskru [66]
3x^2y^3+5x^3y^3-6+x^3y^2-2
= (3x^2y^3+5x^3y^3+x^3y^2)-(6+2)
= x^2y^2(3y+5xy+x)-8.

The final answer is x^2y^2(3y+5xy+x)-8~

4 0
3 years ago
X= 9 and 2m+ 11-x=0<br> What is the value of m?
Svetllana [295]

Answer:

m=-1

Step-by-step explanation:

Since you no what x is you can subst. it into the second equation so 2m+11-9=0 so 2m+2=0 then subtract 2 from both sides 2m=-2 than divide m=-1

5 0
3 years ago
6 times a number is 72 what is the number?
LuckyWell [14K]

Answer:

12

Step-by-step explanation:

72 divided by 6 equals 12

7 0
3 years ago
Read 2 more answers
Two pillars have been delivered for the support of a shade structure in the backyard. they are both ten feet tall and the cross
BartSMP [9]

The steps to determine whether the pillars have the same volume are;

First, we must know that the volume of an object of uniform surface area is the product of its Area and height.

The uniform area of each pillar is then evaluated and if equal;

Both pillars can be concluded to have the same volume.

We must first recall that for various shapes, the volume of the shape is a function of its height.

For example: a A cylinderical pillar and a rectangular prism pillar;

Volume of a cylinder = πr²h

Volume of a Cuboid = l × w × h

Since h = h.

Therefore, for both pillars to have the same volume; their Areas must be equal.

πr² = l × w

Learn more about Area and volume here

brainly.com/question/987829

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3 0
2 years ago
10 of the students in Miss Ransom‘s class play an instrument. These 10 students make up 40% of the class how ,many students are
Mashutka [201]

Answer:

250 students

Step-by-step explanation:

Given data

Let the total number of students be x

Number of students that plays instrument = 10

Hence

40% of x = 10

40/100*x= 100

0.4x=100

x=100/0.4

x= 250

Hence there are 250 students in total

3 0
3 years ago
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