You walk around a circular pond of radius 13 miles for angle of theta = 10 degrees degree Which one of the following shows the distance you walked around the pond? (Take pi approx 3.14) (A) 0.27 miles
(B) 10 miles
(C) 2.27 miles
(D) 1.3 miles

  (C) 2.27 miles

Step-by-step explanation:

Without doing any detailed calculation, you can estimate the distance. The angle of 10° is 1/36 of the full circle of 360°. The circumference is given by the formula ...

  C = 2πr = 2(3.14)(13)

We want to find 1/36 of that circumference, which will be about ...

  C/36 = (3.14)(2)(13)/36 ≈ 3.14(2/3) ≈ 2

This is sufficiently accurate to determine that the best choice is (C).

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If you want to use a calculator, you can figure the distance as ...

  C/36 = (3.14)(26/36) ≈ 2.26777...(repeating) ≈ 2.27 . . . miles

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.