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Zolol [24]
3 years ago
11

A triangle has sides (3x + 9), (4x - 8), and (10x +21). What is the perimeter of the triangle?

Mathematics
1 answer:
BartSMP [9]3 years ago
8 0
17x+22 is the perimeter of the triangle
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If A(1,2), B(5,-4) and (-3,2) are the vertices of a triangle, which statement holds true?
Zigmanuir [339]

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The correct option is A.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

The length of different sides are:

AB = \sqrt{(5-1)^2+(-4-2)^2} = \sqrt{16+36} = \sqrt{52}\rm\ units

BC = \sqrt{(-3-5)^2+(2+4)^2} = \sqrt{64+36} = 10\rm\ units

AC = \sqrt{(2-2)^2+(-3-1)^2} = \sqrt{16} = 4\rm\ units

Since the length of all the sides of the triangle is not equal it is a scalene triangle.

Hence, the correct option is A.

Learn more about Triangle:

brainly.com/question/2773823

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2 years ago
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Hey yall i need help again im just lazy but will mark brainlyest
ElenaW [278]

Answer:  1=1 question 2 = 1 again 5-6 is the next and 4 3-10  5-6 next answer2-7  3-8 5-4 -22--9 2-29 are all the answers

Step-by-step explanation:

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3 years ago
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Questlon 3 of 10
amm1812

Answer:

b)A cube with side lengths of 4 feet has a volume of 64cubic feet

Step-by-step explanation:

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5 0
3 years ago
Which pair of expressions is equivalent?
dlinn [17]

Answer:

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Step-by-step explanation:

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Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.
ycow [4]

This  involves quite a lot of arithmetic to do manually.

The first thing you do is to make the first number in  row 2  = to 0.

This is done by R2 = -3/2 R1 + R2

so the matrix becomes

( 2        1          1)    ( -3 )

( 0    -13/2   3/2)   (1/2 )

(5       -1           2)  (-2)

Next step is to make  the 5 in row 5  = 0  

then  the -1  must become zero

You aim  for the form

( 1 0 0) (x)

(0 1 0) (y)

(0 0 1) ( z)

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4 0
3 years ago
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