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3 years ago

The perimeter of a triangle ABC is 54. The triangle has side lengths AB=3x,BC=4x,and AC=5x. Find the length of each side.

1 answer:

7 0

3x+4x+5x=54
12x=54
x=4.5

Plug in the value of x into all three segments.

AB= 3*4.5= 13.5
BC= 4*4.5= 18
AC= 5*4.5= 22.5

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Select ALL the numbers that are greater than 2.

ivanzaharov [21]

Answer: B and D

8/9 • 2 = 1.77

13/11 • 2 = 2.36

3.7 • 0.5 = 1.85

hope this helped :)

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3 years ago

Find the volume and surface area of this cylinder

Yanka [14]

Answer: V≈2613.81 and

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Step-by-step explanation:

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3 years ago

HELP HELP HELP PLEASEE 24 POINTS

kozerog [31]

Answer:

q4 answer is c

Step-by-step explanation:

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3 years ago

Which statement shows how the product of (x + 7)2 demonstrates the closure property of multiplication?

Illusion [34]

The true statement that show the closure property of multiplication :

<h3>a. x² + 14x + 49 is a polynomial</h3>

$\texttt{ }$

<h3>Further explanation</h3>

<em>If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then</em>

$x_1 + x_2 + x_3 = - \frac{b}{a}$

$x_1 x_2 + x_1 x_3 + x_2 x_3 = \frac{c}{a}$

$x_1 x_2 x_3 = - \frac{d}{a}$

Let us now tackle the problem!

$\texttt{ }$

This problem is about Polynomial.

$(x + 7)^2 = (x + 7)(x + 7)$

$(x + 7)^2 = x^2 + 7x + 7x + 7(7)$

$(x + 7)^2 = x^2 + 14x + 49$

$x^2 + 14x + 49$ is a polynomial.

$x + 7$ is polynomial.

It demonstrates the closure property of multiplication.

$\texttt{ }$

<h3>Conclusion:</h3>

<em>The true statement that show how the product of (x + 7)² demonstrates the closure property of multiplication:</em>

<h3>a. x² + 14x + 49 is a polynomial</h3>

$\texttt{ }$

<h3>Learn more</h3>

Solving Quadratic Equations by Factoring : brainly.com/question/12182022
Determine the Discriminant : brainly.com/question/4600943
Formula of Quadratic Equations : brainly.com/question/3776858

$\texttt{ }$

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Polynomial

$\texttt{ }$

Keywords: Quadratic , Equation , Discriminant , Real , Number

#LearnWithBrainly

7 0

4 years ago

Read 2 more answers

Please help this is due before midnight and I don't understand any of this

crimeas [40]

Answer:

Algebra Review: x=-4, r =5

Step-by-step explanation:

Use distributive prop;

-3x-6=6

then add 6 to both sides to get x by itself

you get -3x=12

divide both sides by -3

you get x=-4

Again do distributive prop.

-12r+24=-36

trying to get r by itself, so subtract 24 on both sides

you get: -12r=-60

then divide -12 both sides to get r by itself and you get r=5

Pythageron Theorem:

which is a^2+b^2=c^2

a=3, b=7 and c=C^2 (this is always the long side)

so then we get 3^2+7^2=c^2

9+49=c^2

opposite of sqaring is rooting

so we get sqare root of 58 or 7.6

I'm sorry I can't help you with the angles, I would suggest looking it up and Khan Acadamy is a good resource. Good Luck!

6 0

3 years ago