The equation of a circle:
(h,k) - the coordinates of the center
r - the radius
The center is the midpoint of the diameter.
The radius is half the diameter, or the distance from one of the endpoints to the center.
The equation of the circle:
Answer:
1 / 16
Step-by-step explanation:
Divide each term by 2.
2 / 2 = 1
32 / 2 = 16.
1 / 16 = 2 / 32
Answer:
first one is 65 second one 75 third one 25
Step-by-step explanation:
Answer:
x=2,y=5
Step-by-step explanation:
y=8x-11 ----(1)
y=-7x+19----(2)
Replace (1) in (2)
8x-11 =-7x+19
8x+7x=19+11
15x =30
x =30÷2
x =2
If x=2,then replace x=2 in (1)
y=8(2)-11
y=16-11
y=5
Answer:
A car is more fuel efficient and it goes 30 miles per gallon (5/12 gallon to travel 12 1/2 miles)
Step-by-step explanation:
A car : 5/12 gallon to travel 12 1/2 miles
(12 1/2) / (5/12) =
(25/2) / (5/12) =
25/2 * 12/5 =
150/5 =
30 miles per gallon
B car : 5/7 gallon to travel 20 5/7 miles
(20 5/7) / (5/7) =
(145/7) / (5/7) =
145/7 * 7/5 =
145/5 =
29 miles per gallon
most fuel efficient is A car....it gets 30 miles per gallon
