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3 years ago

The perimeter of an equilateral triangle is 9n - 12. Write an expression to represent the length of each side.

2 answers:

kramer3 years ago

7 0

Perimeter is the sum of the sides which is 9n-12 and since all 3 sides are equal then the length of one side is (9n-12)/3= 3n-4

Ket [755]3 years ago

4 0

Idk But The Boy Or Girl Finna Say The Answer^^

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Maria bought seven boxes. A week later half of all her boxes were destroyed in a fire. There are only 22 boxes left. With how ma

Sloan [31]

Answer:

22*2

=44

Step-by-step explanation:

7 0

3 years ago

What are the steps for etc?<br> x - 14.6 = 8.02

Crank

Answer:first add 14.6 to both side of the equation and that will give you what is x equal to

Step-by-step explanation:am just smart

5 0

3 years ago

Read 2 more answers

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Gwar [14]

Answer:

1/12

Step-by-step explanation:

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4 0

3 years ago

Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

$cot x = \frac{cos x}{sin x}$

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

4 0

4 years ago

A = 9 m, b = 4 m and c = 13 m for the triangle shown below.

maw [93]

The answer is 9 shown below a b c triangle shown below ⬇️

7 0

3 years ago