The circumference of circle r is approximately 50.99 centimeters and the circumference of circle s is approximately
173.74 centimeters
the diameter of circle r is approximately 16.24 centimeters and the diameter of circle s is approximately 55.33 centimeters.
determine the ratio of the circumference to the diameter for circle r and for circle s.

Step-by-step explanation:

The circumference of circle R is approximately 50.99 centimeters.

The diameter of circle R is approximately 16.24 centimeters. Therefore,

The ratio of the circumference of circle R to the diameter of circle R would be

50.99/16.24 = 3.14:1

The circumference of circle S is approximately 173.74 centimeters.

the diameter of circle S is approximately 55.33 centimeters.

The ratio of the circumference of circle S to the diameter of circle S would be

173.74/55.33 = 3.14 : 1

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.