What is the value of cos b in the sketch below

What is the range for 31,39,29,34,37,24,36,33,34,28

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

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?