To find the interior angle of any regular polygon you can use the formula
where n is the number of sides
So,
The measure of an interior angle in a regular octagon is 135
Answer:
0.5
Step-by-step explanation:
0.42 x = 0.21
x=0.5
Let t represent "total price." Then 0.20t = $1600, and t = $1600/0.20 =
$8000 (answer)
Answer:
C
Step-by-step explanation:
hope this helps with the work
Answer:
x = 3 ± 2
Step-by-step explanation:
given
x² - 6x + 1 = 0 ( subtract 1 from both sides )
x² - 6x = - 1
To complete the square
add (half the coefficient of the x- term)² to both sides
x² - 6x + (- 3)² = - 1 + (- 3)²
x² - 6x + 9 = - 1 + 9
(x - 3)² = 8 ( take the square root of both sides )
x - 3 = ± = ± 2 ( add 3 to both sides )
x = 3 ± 2