Answer: 180 degrees
Step-by-step explanation:
A rotation of 180 degrees about the origin maps .
If x=3 and y=5, what is the value of:1. 4x-2y2. 2x^2+3y^2
1 answer:
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Answer:
x = 4 ±
Step-by-step explanation:
Given
x² - 8x = 3
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 3 + 16
(x - 4)² = 19 ( take the square root of both sides )
x - 4 = ± ( add 4 to both sides )
x = 4 ±