I think the answer would be the last one. a cylinder with radius 4 units.
first convert the yards to feet....then add all of them together and subtract from 100
Answer:
it should be 4.24264068712 looked it up
8 . You round 31.9 to 32 then divide it by 4 which gives you 8
Answer:
If y(t) is the mass (in mg) remaining after t years, then y(t) = y(0) (0.5)^{t/T} = 400 (0.5)^{t /4}, where T is the half-life period and y(0) is the amount at t = 0 years (initial).
Then at t = 20:
y(20) = 400 (0.5)^{20 /4} = \text{12.5 mg}
Step-by-step explanation: