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Algebra

Covering pre-algebra through algebra 3 with a variety of introductory and advanced lessons.

Geometry

Learn basic geometric shapes, properties, formulas, and problem solving techniques.

Calculus

Look here for more advanced topics starting with pre-cal and extending through multivariable calculus.

Trigonometry

Sines and cosine, angles and formulae.

Statistics

Here's where we cover basics, like the mean and median, along with links to more advanced statistics topics.

Solvers

Solve your own math problems with our selection of free online calculator tools.

Recently Asked Math Questions

VAT charged at 20%, so £19,800 represents 120% of price before VAT Sun, 17 Mar 2024 10:48:00 +0000

Highest common factor: "The highest common factor of two numbers is 6. The lowest common multiple of the same two numbers is 72. What are the number?" Sun, 17 Mar 2024 03:41:53 +0000

Vectors in equilibrium: A body is acted on by 3 forces in the (x,y)-plane. T_3 = 30.0j N, angle is 20.0 degrees, body is at equilibrium Mon, 18 Mar 2024 22:30:02 +0000

How to solve this? The first three terms of a different geometric progression are (4/3)cos^2(3theta), (16/9)cos^4(3theta), and (64/27)cos^6(3theta) Sun, 17 Mar 2024 23:46:25 +0000

Please help with this: In triangle XYZ, side y is 8cm, side z is 5cm, and the measure of angle Y is 75 deg; find the length of side x Tue, 19 Mar 2024 05:03:07 +0000

Please help: On an athletic field, the length of one running track is exactly 400 meters. What is the distance between the front and back lines? Thu, 14 Mar 2024 06:11:22 +0000

How would you solve positive integer adding to a certain number questions. Mon, 18 Mar 2024 21:04:16 +0000

5th grade math question: 5 packages. 12 people. How much does each person get? Wed, 13 Mar 2024 12:36:42 +0000

Help me please: The boat is at anchor at a point where the water depth is 7.5 meters. The length of the anchor rope is exactly 10 meters. What is... Thu, 14 Mar 2024 06:12:10 +0000

Proof that minus a minus is positive Mon, 11 Mar 2024 08:36:07 +0000

Simple Short Question about Probability: lottery consists of 200 tickets and two prizes. 1st prize ticket is drawn and then, w/o replacement,... Mon, 18 Mar 2024 02:56:04 +0000

Queuing theory: At a computerized Rail Reservation window, the customer arrivals are considered to be Poisson with an average inter-arrival time of... Sun, 17 Mar 2024 06:51:44 +0000

calculus problem: For which non-negative values of a does the function y=(x^2+3x)/x+a have a clear discontinuity point? Tue, 19 Mar 2024 00:55:16 +0000

f(x) = sqrt( (e^x) - 1 ): find the domain, find 1st and 2nd derivatives, and test for concavity Mon, 18 Mar 2024 21:52:43 +0000

Please help me understand and solve the second-order DM: yy" + y = (y')^2 Tue, 19 Mar 2024 01:38:28 +0000

Burgers equation: du/dt + u * du/dx - v* (d^2u/dx^2) = 0, with u(x,0)= 2 for x < 0 u(x,0)= 0 for x >/= 0 Mon, 04 Mar 2024 07:12:26 +0000

help please Mon, 18 Mar 2024 20:53:28 +0000

Prove that (A \ B) ∩ (B \ A) = ∅ using mostly formal logic Sun, 17 Mar 2024 11:30:58 +0000

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