If the half-life of a unstable isotope is 10,00 years and only 1/8 of the radioactive parent remains how old is the sample? A. 10,000 B. 20,000 C. 30,000 D. 40,000

2. Which expression shows the given expression when simplified? (1-10) 2x+8-X-3 A 3x + 11 B 3x - 5 C x + 11 D x + 5

Calculate 7.30•1.63 and round to the correct number of significant digits

Add the equations. 3x - y = - 1 - 3x + 3y = 27

V = LWH Solve for W.

If you have 10 baskets with tens chicks how many eggs can they fit

What is a negative plus a negative

I just completed 12 questions on a test the progress bar shows 20% is complete how many total questions are on the test?

A parabola, with its vertex at the origin, has a directrix at y = 3. Which statements about the parabola are true? Check all that apply. The focus is located at (0,-3). The parabola opens to the left. The p value can be determined by computing 4 (3).

True or false? in order to circumscribe a circle about a triangle, the circle's center must be placed at the incenter of the triangle.

If the diameter of a circle is half of a yard then its radius is how many inches?