Matthew L's TSI Math Cards exam questions and 100% correct answers

If you aren't sure how to solve a problem, what can you do? - correct answer Plug in the answers. Rewrite problem. Draw a picture if relevant. Write down any equations that might be used. Like area of a triangle, circumference of a circle, area of a rectangle, etc. What can help you solve tables, charts, and graphs? - correct answer Write down numbers from the graph instead of just keeping the numbers in your head. How do you solve an equation like: 2x² = 10x - correct answer FIRST - move everything to the left 2x² - 10x = 0 SECOND - factor GCF 2x (x -5) = 0 THIRD set each factor = 0 2x = 0 and x - 5 = 0 x = 0 and x = 5 When substituting numbers or variables, what should you do? - correct answer put them in parentheses EX if b = 2x + 3, then b² = - correct answer EX if b = 2x + 3, then b² = (2x+3)(2x+3)= 4x² + 6x + 6x + 9 b² = 4x² + 12x + 9 1/2 * 32 is the same as... - correct answer 1/2 * 32 is the same as... dividing 32 by 2