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estimated difference = 72

actual difference = 72.74

Step-by-step explanation:

Hello There!

First lets find the actual difference

Note: difference is subtraction

79.44-6.7=72.74

so the actual difference is 72.74

now lets find the estimated difference

79.44 rounded to the nearest whole is 79

6.7 rounded to the nearest whole is 7

79-7=72

so the estimated difference is 72

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

understand that i don't know the answers

will someone answer his question