MATH 100

MATH- 100 most commonprecent increase/decrease formulas percent increase= amt of increase/OG whole percent decrease= amt of decrease over og whole Multiples of 2,3,4,5,6,9,10,12 2: last digit even 3: sum of digits is multiple of 3 4: last two digits are a multiple of 4 5: last digit is 5 or 0 6: sum of digits is a multiple of 3, and the last digit is even 9: sum of digits is multiple of 9 10: last digit is 0 12: sum of digits is a multiple of 3 and last two digits are a multiple...

MATH 100 practice midterm 1A certain radioactive isotope decays at a rate of 0.225% per year. Determine the half-life of this isotope, to the nearest year. - correct answer -log(2)/log(1-0.00225)=307.71 or 308 years Sara's Antiques claims that of its 4161 items in inventory, 3931 items are plain junk, while the rest are antiques. What percent of total inventory is antiques? Round to the nearest tenth of a percent. - correct answer Number of antiques is = 230. Percentage is (230/4161)*100 = ...

Math 100 propertiesReflexive - correct answer 7=7 Symetric - correct answer 6+1=7 and 7=6+1 Transitive - correct answer 20+1=21 = 21 = 18+3 Substitution - correct answer a=7 3a+5= 3(7)+5=26 Commutative - correct answer 25+75=100 is equal to 75+25=100 Associative - correct answer (6+2)+3 = 6+(2+3) (2-4) x 3 = 2 x (4x3)

Math 100: Quiz #1Answer Numerical / word / etc. result from calculations only. Solution Description of how you solved the problem, more than a description of your calculations, explains your reasoning in the context of the problem. Can someone reading this understand what you did without knowing about the problem? Problem A solution path is not immediately known. Exercise Solution path is known. Numbers Ideas or concepts. Six, for instance, is the idea of "six-ness"....

MATH 100 QUIZIS GREATER THAN OR EQUAL - correct answer FACTORIAL - correct answer INTEGRAL - correct answer THEREFORE - correct answer PERPENDICULAR - correct answer IS EQUIVALENT TO - correct answer THETA - correct answer IMPLIES - correct answer IS CONGRUENT TO - correct answer FACTORIAL - correct answer INTERSECTION OF TWO SETS - correct answer LINE AB - correct answer PERPENDICULAR - correct answer

Math 100 reviewformula for distance of two points - correct answer midpoint formula - correct answer ( slope of two points - correct answer equation of the line with given points and slope - correct answer y-y1 = m(x-x1) finding x and y intercept - correct answer make x any y zero sum of cubes - correct answer

Math 100 test #3exponential function - correct answer f(x)=bx is called an b>0 b=/ 1 b is all real numbers B is always positive - correct answer What conditions are placed on b Logarithmic function - correct answer The inverse of this function is called a 10 - correct answer The base used for the common logarithm is e - correct answer The base used for the natural logarithm is

Math 100 Test 1y-axis symmetry - correct answer x,y and -x,y are on the same graph test by replacing x with -x x-axis symmetry - correct answer x,y and x,-y are on the same graph *not functions since they fail the vertical line test test by replacing y with -y symmetrical about the origin - correct answer x,y and -x,-y are on the same graph test by replacing x with -x and y with -y finding points of intersection - correct answer make the two equations equal each other and solve for ...

math 100 test 1 Distance Formula - correct answer d = √( x₂ - x₁)² + (y₂ - y₁)² midpoint formula - correct answer (x₁+x₂)/2, (y₁+y₂)/2 slope-intercept form - correct answer y=mx+b Graphing ordered pairs - correct answer rise over run what does y = when your solving for x - correct answer 0 what does x = when your solving for y - correct answer 0 Slope Formula (when given two points) - correct answer m = (y2 - y1) / (x2 - x1) substitution method - correct...

math 100 testthree methods to represent sets - correct answer word description, roster method and set builder the empty set - correct answer the null set, set that contains no elements ( ) or 0/ what are elements - correct answer elements are objects of the set Sets - correct answer sets are collection of objects whose contents can clearly be determined Intersection definition and notation - correct answer The intersection of sets A and B is the set of elements common to both set A a...