True, a measurement of 8,452 meters has a lower margin of error than a measurement of 84.52 meters.
A)
well, she has a total of 70 + 30 tiles, now she's not going to used all of them, just some.
the dark area is 8x5, so is 40 ft², and the light gray area is 8x4 or 32 ft². The total area is then 40 + 32, or 72 ft².
b)
the dark area is an 8x5 rectangle, so is 8*5 or 40, so she'll need 40 dark tiles, but she has 70, so that's fine.
the light gray area is a 8x4 rectangle, 8*4 is 32, but she only has 30 light gray tiles, so she's short 2 light gray tiles.
(2,3) and (-1,-5)
Distance =√(-1-2)^2 +(-5-3)^2
Distance =√73 (diamter)
radius = (√73) / 2
area of semi-circle:
= 1/2 πr^2
= 1/2 π ((√73) / 2)^2
= 73 π / 8
= 9.125 π
area of triangle:
= 1/2 (8)(3)
= 12
Area of the figure = area of semi-circle + area of triangle<span>
</span>= 9.125π + 12
answer
9.125π + 12
You can set up proportions to find the width of the stream.
6/7.5=x/28
Cross multiply and solve for x.
168=7.5x
Divide by 7.5
x=22.4 ft
The stream is 22.4 ft wide