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ACT Math Practice

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ACT Strategy for Multiplying a Horizontal Matrix by a Vertical Matrix

On the ACT Math test, you’ll probably have to multiply pairs of matrices that have either one row or one column. An easy way to multiply a horizontal matrix by a vertical matrix is to set up a small grid [more…]

ACT Strategy for Solving a Matrix Using a Determinant

A determinant is a common operation performed on a square matrix. On the ACT Math test, the only determinant formula you need to be familiar with is for a 2 x 2 matrix. Here’s the formula for the determinant [more…]

Ten Important Things to Remember before Taking the ACT

You can’t be too organized, especially for the ACT Math test. To make sure you get off on the right foot, here are ten items to check off as you approach the test. [more…]

Pre-Algebra and Algebra Formulas You Must Know for the ACT

Some of the questions on the ACT Math test deal with pre-algebra and algebra problems. There are only a few formulas to remember, but they are vital.

Here are two important pre-algebra formulas you need [more…]

Plane Geometry Formulas You Must Know for the ACT

Some of the questions on the ACT Math test deal with plane geometry. Plane geometry is chock-full of useful formulas. If you can’t commit all these formulas to memory and need to prioritize them, memorize [more…]

Trigonometry Formulas You Must Know for the ACT

Some of the questions on the ACT Math test deal with trigonometry problems. Below are some of the most useful formulas for trig ratios, radians, and identities. [more…]

Strategies for Solving Systems of Equations on the ACT

A system of equations is a set of two or more equations that include two or more variables. To solve a system of equations on the ACT Math test, you need one equation for every variable in the system. [more…]

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