If you are decorating a square mouse pad. you placed a colored sticker in each corner. if you had r different colors available, r to 4th power + 2 times r to third power, + 3 times r to the second power + 2 times r divided by 8. 2 patterns are different if you can not produce

problem is r^4+2*r^3+3*r^2+2*r/8.2

r​4​​+2r​3​​+3r​2​​+​8.2​​2r​​

r​4​​+2r​3​​+3r​2​​+0.243902r answer

i am sure it will be 90 degrees.

step-by-step explanation:

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