The sin of 90 = 1 but how you get that with out a calculator I have no idea. Do you have to show your work?
(5x - 4x)² + 3
(5x - 4x)(5x - 4x) + 3
Simplify.
25x² - 20x² - 20x² + 16x² + 3
Add like terms.
(25x² - 20x²) + (-20x² + 16x²) + 3
Simplify.
5x² - 4x² + 3
Simplify once more.
x² + 3
~Hope I helped!~
Answer:
Step-by-step explanation:
It's about +- 2.2. It equals 2.236067977 but can be rounded to 2.2. When you square root, the answer could be positive or negative.
Answer:
The equation of the line in slope-int form is y=2x+5