Answer:
20 degrees
Step-by-step explanation:
A semicircle is half of a circle.
1/9 of a semicircle is 1/18 of a circle.
1/18 of 360 = 20 degrees.
Answer:
11
Step-by-step explanation:
square root of 125 11.1803398875 rounded down is 11
X^2 + 5x - 5 = 0
This is a quadratic equation that cannot be factored. It can be solved using the quadratic formula or by completing the square.
the quadratic formula is x = (-b +-sqrt(b^2 - 4ac))/2a
a is the coefficient of the x^2, b is the coefficient of the x, and c is the constant.
a = 1, b = 5, c = -5
x = (-5 +- sqrt(25+20))/2
x = (-5 +- sqrt(45))/2
x = (-5 + - 3 sqt 5))/2
x = (-5 + 3sqrt5)/2 and x = (-5 - 3sqrt5)/2
Answer:C
Step-by-step explanation:
