1. The half-life of the radioactive element krypton-91 is 10 seconds. If 32

grams of krypton - 91 are initially present, how many grams are present

after 30 seconds? Show the decay function. Use A = A0ekt

Explain why it is necessary to rename 41/4 if you subtract 3/4 from it and the 4 in 41/4 are 4 wholes

Can you find the surface area of a prism if you know that it is a cube and that the width is 2 ft? Explain why or why not. If you can find the surface area, what is it?

How to solve step by step - 3 (2x-3) < 3?

V1/V2=T1/T2. Solve for V1

True or false: The sum of an Integer and it's opposite is not a zero

If f (x) = ||x||, find f (-14)

What's the reason for the fourth statement in this proof

A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h (t) = - 16t2 + 48t where t equals the time in seconds and h (x) represents the height of the ball at time t seconds.

Mark an fred had some money in the ratio 6:1. mark gave half of his money to fred. what is the ratio of the amount of money mark had left to the amount mark had let to the amount of money fred had left

The area of one face of a cube is 100 square inches. Find the cube's surface area.