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ddd [48]
3 years ago
10

What is the value of x?

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Answer:

x = 10

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Geometry</u>

  • All angles in a triangle add up to 180°

Step-by-step explanation:

<u>Step 1: Set up equation</u>

(x + 1)° + (10x - 7)° + (8x - 4)° = 180°

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Combine like terms:                         19x - 10 = 180
  2. Isolate <em>x</em> term:                                   19x = 190
  3. Isolate <em>x</em>:                                            x = 10
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investment historically have doubled every 9 years if you start with $2000 investment how much money would you have after 45 yea
Oksi-84 [34.3K]
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4 years ago
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Find the length of side AB in the right triangle shown.
Bogdan [553]
Side AB is 72 cm long.



Explanation:

To find the length of side AB you have to use this formula:

{a}^{2}  +  {b}^{2}  =  {c}^{2}

*Remember there are two legs (a and b) and a hypotenuse (c) on a triangle. The longest side will be the hypotenuse and the other two will be the legs. For this triangle the hypotenuse is side BC while the legs are sides CA and side AB.

Plug in the numbers into the equation.


{65}^{2}  +  {b}^{2}  =  {97}^{2}
For this triangle, you were given the hypotenuse (c) and one leg (a). To find the last length solve the equation and balance it so only b is left, like this:

4225 +  {b}^{2}  = 9409

9409 - 4225 = 5184

Soo...

{b}^{2}  = 5184

Then to get the side length, square root 5184.

\sqrt{5184}  = 72

So the length of the last side is 72 cm.
5 0
3 years ago
Simplify a^n*a^-n<br><br> Thank you! :)
irakobra [83]
Yy^2 I'm pretty sure is the answer! 
6 0
3 years ago
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I don’t get it :/ but may you please help me please if so thank you so much
scoundrel [369]
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3 years ago
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bagirrra123 [75]

Answer:

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Step-by-step explanation:

6(6x-3(

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