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Praxis I Math

Subjects : praxis, math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The inverse property of multiplication says that for every real number a - a cannot = 0 ther is a real number a^____such that a X a ^____ = a^____ X a =1






2. A set of points in the seame plane equidistant from a fixed point - called its center






3. What is the surface area of a sphere with a radius r






4. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________






5. What is the formula for a square if you only know the length of the diaganol






6. The volume of a cube is






7. The graph of y= ax^2 + bx + c is a curve know as a ____________






8. The greatest common factor is the largest __________that is common to all member of the set






9. What is the linear equation where a - b and c are constants b cannot = 0






10. Two angles with a common vertex and with sides that are 2 pairs of opposite rays






11. An angle whose measure is greater than 180 degrees and less than 360 degrees






12. In order to decimal to a percentage you need to ______ by 100






13. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx ey+ f = 0 the graph is called an __________ (if a - b and c are not zero)






14. ___________is a quadrilateral whose opposite sides are parallel






15. A line that joins the midpoint of two sides of a triangle is called the__________






16. What is a quadrilateral with 2 and only 2 sides parallel






17. _____________ of angles is an equivalance relation - it is reflexive - symmetric and transitive






18. What is 4 to the power of 1/2 or 4^1/2






19. What is the volume of a sphere with a radius r






20. What is the square of ((x1-x2) + (y1- y2)) =






21. 2 angles that have their vertices at the endpoints of the same side of a parallelogram are called ____________________






22. Once you find the roots of a radical equation you must check them to see if any are __________roots (which means they are not equal when plugged back into the original formula) these roots must be ___________






23. A line segment connecting a vertex of a triangle and the midpoint of the opposite side is called a __________ of a triangle






24. What is the formula for a combination (where order matters)






25. In the law of proportion if a/b = c/d then (a+b)/ b =






26. To calculate a permutation (order does not matter) what is the formula






27. A _________ number is a number that can be written in the form of a + bi






28. If a=0 in a quadratic formula - the quadratic is reduced to a linear function and a ____________






29. An angle whose measure is 180 degrees






30. In the law of proportion if a/b = c/d then (a - b)/b =






31. What are the 2 formulas to calculate the circumference of a circle






32. If a triangle has two congruent sides then it is an _________triangle






33. What is the formula for the area of a triangle






34. Positions = number of position can be calculated by finding the ______ of the total number of items






35. x= - b (+ or -) square root of (b^2-4ac) divided by 2a - is called the _____________ and can be used to find the roots of a problem






36. When calculating the number of sides in a polygon make 360 degrees/ n = ______________






37. A triangle with having at least 2 equal sides






38. The sum of the interior angles of a triangle = ___________






39. Use ____________= 1/2a X p (where a = apothem and p = the perimeter)






40. That points of intersection on a triangle are called its _____________






41. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________ (b^2-4ac greater then 0)






42. What is the closure property of multiplication for every real number a - for every real number b _________ is a real number






43. Angles that are equal






44. In complex numbers the square root of -1 = ______






45. When calculating the probability of mutually exclusive event y (can not occur simultaniously) you need to ______their seperate probabilities (uses the word 'or')






46. A triangle with one obtuse angle (angle greater than 90 degrees) is






47. Operation in steps = if an event a ways and followed by b ways followed by c ways the total number of ways it can be done is






48. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon






49. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________or a __________ or __________(b=0 and a=c)






50. The perimeter of two similar polygons have the same ratio as the measure of any pair of corresponding line segments of the polygon