Suppose that circles R and S have a central angle measuring 80°. Additionally, the measure of the sector for circle R is
32
9
π m2 and for circle S is 18π m2.

If the radius of circle R is 4 m, what is the radius of circle S?

Someone answer this check out the image!

Use sigma notation to represent the following series for 9 terms.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?