First pick: 13/(13+19+8)=13/40
the second pick: 12/39
both: 13/40 *12/39=156/1560=0.1
Answer:
centre = (13,0)
radius = 8
Step-by-step explanation:
The standard equation of the circle is
(x-x0)^2 + (y-y0)^2 = r^2 ...............(1)
where
(x0,y0) is the centre,
r is the radius.
For
(x-13)^2 + y^2 = 64 ..............(2)
we rewrite (2)
(x-13)^2 + (y-0)^2 = 8^2 ...............(3)
and compare (3) with (1)
to identify
x0 = 13, y0 = 0, and r = 8
Therefore
centre = (13,0)
radius = 8
Answer:
She'll receive $6.53.
Step-by-step explanation:
First add everything she purcahsed.
1.22 + 1.48 + 7.98 + 2.79 = 13.47
Then subtract that from how much she paid.
20 - 13.47 = 6.53
So 6 dollars and 53 cents.
Answer:
N0.
Step-by-step explanation:
In 1 hour it can travel 160/2 = 80 miles.
So in 8 hours it travels 8 * 80 = 640 miles only.
202 - 18 = 184 (the length is 9ft longer than the width, and you double the length to find the perimeter, so you double the 9)
184 ÷ 4 = 46 (4 being the 4 sides of the rectangle)
width = 46
length = 46 + 9 = 55
55 x 46 = 2530
Area = 2530ft²
