The simplified form of the expression is 
<h3>Simplifying an expression</h3>
From the question, we are to simplify the given expression
The given expression is

The expression can be simplified as shown below





Then,





Hence, the simplified form of the expression is 
Learn more on Simplifying an expression here: brainly.com/question/2320607
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Answer:
63°
Step-by-step explanation:
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hope it helps...
have a great day!!
Answer:
13.7
Step-by-step explanation:
It forms a triangle.
They are trying to find the height, cause they say the east-bound car went east so that makes the bottom of the triangle, the width. They also give is the distance in between both cars so that's the hypotenuse so let's set up the equation...
15² - 6² = 189
now we square root it
√189 = 13.7
I believe the answer would be B
The numbers they are looking for are numbers that are simple but made up. For example, start with 0. Plug 0 in for x, so the corresponding value of y is 10. For a second value, you could do 2. When x=2, y=11, etc. So essentially, put in some simple numbers for x, and solve for y. :)