Step-by-step explanation:
- A circle is only composed of the points on the border
- The distance around the circle is called circumference
Answer:
true
Step-by-step explanation:
go download cymath app and check
Step-by-step explanation:
download cymath and solve everything only maths solution
Answer:
{ - 2, 10 }
Step-by-step explanation:
Given
x² - 8x = 20
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 20 + 16, that is
(x - 4)² = 36 ( take the square root of both sides )
x - 4 = ±
= ± 6 ( add 4 to both sides )
x = 4 ± 6
Thus
x = 4 - 6 = - 2
x = 4 + 6 = 10
The answers are:
A.) 81
B.) 16, 807
C.) 10
D.) 78,125