The half-life of radium is 1690 years. If 20 grams are present now, how much will be present in 250 years?

Which is equivalent to P (z ≥ 1.4) ? P (z less than or equal to 1.4) 1-P (z less than or equal to 1.4) P (z greater than or equal to - 1.4)

In percent problems, the term rate refers to the

How to solve this problem -3 - 4 (-2) + 3

The pattern for a scarf is shown at the right. What is your he area of the scarf?

Charlene is a writer who is going on a trip. she has brought several copies of her latest book in her suitcase. the suitcase itself weighs 5 pounds and each book weighs 3 punds.

An amount of $49,000is borrowed for 13 years at 7.25% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back? Use the calculator provided and round your answer to the nearest dollar.

Is the gcf of two even numbers always even?

What is x=1-4y in slope - intercept form

Cory is making a poster of common geometric shapes. He draws a square with a side of length 4 3 cm, an equilateral triangle with a height of cm, a circle with a circumference of 8π cm, a rectangle with length cm, and a parallelogram with base 3.

What is the worst thing to make in pottery class