Answer:
Below.
Step-by-step explanation:
a. As the circumcentre is (0,0) and one point on the circle is (10,0) the radius is 10.
The circle has equation:
x^2 + y^2 = 10^2
x^2 + y^2 = 100.
b. (-5, k) is a point on the circle, so
(-5)^2 + k^2 = 100
k^2 = 100 - 25 = 75
So k = √75
k = 5√3 or 8.66 to 2 places of decimals.
c. The lengths of the 3 sides of the triangles are 10, 10 and 15.8 so it is isosceles.
Answer:
c
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
20-6=20
1 gallon = 4 quarts.
2 gallons = 4 x2 = 8 quarts
She needs 8 quarts total and has 3 quarts.
8-3 = 5
She needs 5 more quarts.
Answer:
4 miles
Step-by-step explanation:
