XPY is the circumference minus XY
the angle of arc XY is 90 degrees
a full revolution of a circle is 360 degrees
the distance XY is 1/4 of the circumference of the circle
the circumference of a circle is C=2 pi r
r is 10m
the circumference is 20 pi
1/4 of 20 is 5
the distance of arc XY is 5 pi
20pi - 5 pi = 15 pi
Answer:
(-1,9)
(0,3)
(1,-3)
(5,-27)
Step-by-step explanation:
Plug x values into the equation.
Answer:
32/10
Step-by-step explanation:
simplify them
4/10= 2/5= 0.4 (as a decimal)
32/10= 3.2 (as a decimal)
3.2>0.4
Answer:
25 liters of petrol
Step-by-step explanation:
78 km = 6 liters
So the ratio is 78:6
Let's find the distance per liter:
78/6 = 13
So you travel 13 km per liter
To find the amount of liters for 325 km, you divide 325 by 13:
325/13 = 25
You would need 25 liters of petrol to travel 325 km.
-Chetan K