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3 years ago

What is the sum of the measures, in degrees, of the interior angles of an 18-

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

4 0

Answer:

Option (D)

Step-by-step explanation:

Sum of interior angles of a polygon is represented by the expression,

Sum of interior angles = n(n - 1)×180°

Here n is the number of sides of a polygon

If n = 18,

Sum of 18 sided polygon = (18 - 1) × 180°

= 7 × 180°

= 3060°

Therefore, sum of interior angles of a 18 sided polygon will be 3060°.

Option (D) will be the answer.

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san4es73 [151]

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3 years ago

An expression that is equivalent to 20x^4

Veronika [31]

An expression that is equivalent to $20x^4$ is 5 $x^{2}$ × 4 $x^{2}$ or 10 $x^{1}$ ×2 $x^{3}$

<u>Step-by-step explanation:</u>

We can write the equivalent expression for the given expression as,

5 $x^{2}$ × 4 $x^{2}$ = 20 $x^{2+2}$ = 20 $x^{4}$

We can add the powers of x as 2+ 2 = 4.

Since the base x is same we can add the powers as per the law of exponents as, $x^{m}$ × $x^{n}$ = $x^{m+n}$

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3 years ago

What is the solution to the equation show your work<br> 3/5(x-5/8) =1/12-x+7/8

Nonamiya [84]

1. distribute

step 1: 3 3

----- × X = ------X

5 5

3 5 3 Ima convert this into a decimal

------- × - ----- = - ------ ----> negative .375

5 8 8

2. write the problem now

3 1 7

----- X - 0.375 = ---- - X + ----

5 12 8

3. I would convert them into decimals and solve

0.6x - 0.375 = 0.08 - x + 0.875

+x +x

--------------------------------------------------

1.6x - 0.375 = 0.08 + 0.876

1.6x - 0.375 = 0.956

+0.375 +0.375

--------------------------------------------------

1.6x = 1.331

------ -------

1.6 1.6

---------------------------------------------------

x = 0.831875

rounded up : 0.83

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Answer:

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Rzqust [24]

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