Answer:54
Step-by-step explanation:
72 classes in one year
75% spent outside
72x0.75=54
we need some barriers such that total of length of all barriers should equal to the circumference of the circle.
so lets assume we need x barriers
then total length of all barriers = 2.5x meter
now radius of circular path = diameter / 2= 13/2 = 6.5 meter
circumference of path = 2× pi × r = 2 × 3.14 × 6.5
=40.82 meter
so now as per statement
2.5x = 40.82
x = 40.82/2.5 = 16.328 ≈ 17
so approximately 17 barriers are required
Answer:
C (2,-4)
Step-by-step explanation:
You could graph the circle and then graph the points and see...
Or you could them in and see which point makes the left hand less than 4?
So if you wanted to draw it is a circle with center (2,-3) and radius 2.
If you want to do it the other way:
Plug in time!
(2,-5)?
(2-2)^2+(-5+3)^2
0^2+(-2)^2
0+4=4 so not this one
(2,-4)?
(2-2)^2+(-4+3)^2
0+1
1<4 so this one (you can also see this in the drawing:
Answer:
187 paving stones are needed
Step-by-step explanation:
Given
Paving stone

Compound

Required
Number of wires to cover the compound
Area is calculated as:

For the paving stone, we have:

Convert cm to m


For the compound, we have:


Divide the area of the compound by the area of the paving stone



The answer to your question is A; .25% because if you take 20 and multiply it by .25, you'll get 5 for an answer. Hope this helped!