Multiple Choice Question: There were 150 mg of a radioactive material stored at the start of the year 2000. The material has a half-life of 15 years. How much radioactive material will there be at the start of 2040?

There were 150 mg of a radioactive material stored at the start of the year 2000. The material has a half-life of 15 years. How much radioactive material will there be at the start of 2040?

Log in or register to post comments

More Old MCQ

Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

Find the product of roots of $\dfrac{x^{2002} + 4x^{2001}}{4x^{2000}} = 8$.
Two vertices of a rectangle are on the positive x-axis. The other two vertices are on the lines y = 4x and y = 6 - 5x. What is the maximum possible area of the rectangle?
A line with equation ax + by = 3 passes through (6, 3) and (-1, -1). Find a and b without finding the slope.
sHh2p5G-2 The magnitude of the reaction at A (kN) is nearest to:
A person buys a piece of property for P100,000 down payment and ten deferred semi-annual payments of P8,000 each starting three years from now.
Solve for x: x - 1 / x = 0.
Is x - 2 a factor of x^3 - 3x^2 + 7x - 10?
A student in a chemistry laboratory wants to form a 32-milliliter mixture of two solutions to contain 30% acid. Solution A contains 42% acid and solution B contains 18% acid. How many milliliters of each solution must be used?
If $a$ and $b$ are integers, then $a+b$ is also an integer. This is true by which of the following properties?
A company’s daily profit P in pesos, is given by the equation P = -2x^2 + 120x - 800
A highway has a gradient of 0.087. How many meters would an automobile rise vertically if it traveled 2 miles along the way?
In a family of five children, what is the chance that there are three boys and two girls?
A circle with radius 6 has half its area removed by cutting off a border of uniform width. Find the width of the border.
A decagon has how many diagonals?
Which of the following is equal to $\dfrac{\sin \theta}{1 + \cos \theta}$.

Home • Forums • Blogs • Glossary • Recent
About • Contact us • Terms of Use • Privacy Policy • Hosted by Linode • Powered by Drupal

MATHalino - Engineering Mathematics • Copyright 2024 Jhun Vert • All rights reserved