Pythagorean Theorem, where a^2+b^2=c^2. Just plugging in the numbers:
200^2 + 125^2=C^2
40,000 + 15,625=C^2
55,625=C^2
Then just take the square root
C=235.8495
If the number needs to be rounded then 236 meters.
First you want to work the discount for the TV.
$187.13*0.75=$140.3475 (this will get you the price of the TV after the discount.)
Now round the answer $140.3475 to the nearest hundredth. The new answer is $140.35. So the price of the TV after the discount is $140.35. Next use this equation to solve for the tax that would be added to the price of the discounted TV:
(t*d)+d=p
In that equation t=taxes, d=discounted TV price, and p=price total. Now input the values you know.
(0.09*140.35)+140.35=p
Multiply what is in the parentheses first.
12.6315+140.35=p
Add the two numbers together.
152.9815=p
Round the end amount to the nearest hundredth.
152.98=p
So now you know that the total price of the discounted TV after tax is added is $152.98. I hope you could understand this and it helps! :D
Answer:
142 degrees
Step-by-step explanation:
The sum of angle in a quadrilateral is 360 degrees
33 + 20 + 165 + X =360
53 + 165 + X = 360
218 + X = 360
X = 360 - 218
X = 142
Hence the size of angle X is 142 degrees
Answer:

Step By Step Explanation:
Expand 
Expand 

Add 7 To Both Sides

Simplify

Add 16x To Both Sides

Simplify

- Both Sides Are Equal, True For All x
- Mordancy