Answer: 180 = 30 + (x + 60)
Step-by-step explanation: Supplementary means that the angles add together to 180 degrees. This equations shows that angle A (30 degrees) plus angle B (x + 60) equal 180. If you solve the equation you will find that angle B is equal to 150 degrees, and that x = 90.
A basic algebraic linear equation is just a fancy way of saying "equation of a line". They are most likely referring to the formula y=mx+b, where m is the slope and b in the y intercept. :)
Answer:
Yes! This is a right triangle.
Step-by-step explanation:
To solve this problem, you need to use the Pythagorean Theorem, which is:
. In this equation, "A" represents the smallest length, "B" represents the next smallest length, and "C" represents the largest length. If a triangle is a right triangle, then the A squared + B squared equals C squared.
In this equation:
A = 12
B = 16
C = 20
1. Insert the values: 
2. Simplify: 
, and
, so this is a right triangle.
<u><em>Hope this helps! Please feel free to give Brainliest if you feel this helped. :)</em></u>
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