TSI Math test Question 100% SOLVED

TSI Math test Question 100% SOLVEDPEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction) work left to right Exponential Notation Ex: 6^4, 2^3, 9^10, etc. Expanded Form Ex: 7x7x7, 6x6, 2x2x2x2x2, etc. Standard Notation Ex: 5^2= 25; 25 is the standard notation (the answer or solution) +x+ =+ +x- =- -x- =+ Adding or Subtracting fractions You need a common denominator Multiplying fractions no special rule, just multiply Ex: 2/5 x 3/9= 6/45 Dividing fractions flip 2nd fraction and multiply Ex: 2/5 divided by 3/9= 2/5 x 9/3 Solving Equations w/ fractions either multiply both sides of the equation by the reciprocal of the fraction, or multiply both sides of the equation by the denominator of the fraction Percent Increase or Decrease problems Formula: amount of change/ original number. Ex: Find the percent decrease if the price changes from $60 to $39. 60-39= 21. amount of change= $21 original number= $60. $21/$60= 0.35. Convert to percents. 0.35= 35% Interest Formula: interest= principal x rate x time (I= PxRxT) Point -A point has no dimension -It is represented by a dot -A point is written using an upper-case letter Line -A line has one dimension -Named using any two point on a line w a two sided arrow above them -It can also be named using a lower-case cursive letter Collinear Points Points that are on the same line Plane -A plane has two dimensions -It is represented by a shape that looks like a floor or a wall, but it extends w/o an end -Through any three points not on the same line there is exactly one plane -A plane is written using 3 non-collinear points or with upper-case cursive letter