Answer:
0
Step-by-step explanation:
- 1 -3 - (- 9) + (- 5) = - 4 + 9 - 5 = 5 - 5 = 0
The answer is 0
Dividing 20x - 16xy by 4x gives 5 - 4y
so the product is
4x(5 - 4y)
The center of the circle is midpoint of the diameter:
The radius is equal the distance between C and Q:
An equation of a circle:
(x - a)² + (y - b)² = r²
(a; b) - a coordinates of a center
r - a radius
r = √65; (-3; 2) ⇒ a = -3 and b = 2
subtitute
(x - (-3))² + (y - 2)² = (√65)²
Answer:
the center: (-3; 2)the radius: √65the equation of the circle: (x + 3)² + (y - 2)² = 65
Answer:
she went 90 miles in 3 hours
Step-by-step explanation:
in 20 minutes, she went 10 miles.
so in 1 hour, we multiply both 10 and 20 by 3
in 1 hour, Amelia drives 30 miles
we multiply this by 3,
and we get 90 miles in 3 hours :)