The circle below has an area of 314 square centimeters, and the square inside the circle has a side length of 2 centimeters.
what is the probability that a point chosen at random is in the blue region?
155
155
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77.5%

Step-by-step explanation:

see the attached figure to better understand the problem    

step 1

Find the radius of the circle

The area of the circle is

we have

assume

substitute and solve for r

step 2

Find the area of the square outside the circle

The length side of the square is the diameter of the circle

step 3

Determine the area of the blue region

The area of the blue region is the area of circle minus the area of the square inside the circle

step 4

The probability that a point chosen at random is in the blue region is equal to divide the area of the blue region by the total area of the outside square

310/400

simplify

31/40=0.775

Convert to percentage

0.775*100=77.5%

Lets get this right, it is D. 155/157

Step-by-step explanation:

Area of square is 4, area of circle is 314. To find area of blue do 314-4. To find area you get 310/314. Simplify by dividing both by 2, you get 155/157.

step-by-step explanation:

5×5×5+2(8)÷2(2)+3(3)

15+16÷4+9

31÷13

do 31÷13 and u will get ur answer

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles