TSIA2 STUDY GUIDES: MATH/ TSIA2
Mathematics Exam with Questions and 100%
Correct Answers Updated 2023 Latest Version
Adding with same denominator ——– Correct Answer ——- (a/b)+c/b)=((a+c)/b)
Subtracting with same denominator ——– Correct Answer ——- (a/b)-(c/b)=((a-c)/b)
Adding with different denominator ——– Correct Answer ——-
(a/b)+(c/d)=((ad)+(cb))/bd
Subtracting with different denominator ——– Correct Answer ——- (a/b)-(c/d)=((ad)-
(cb))/bd
Multiplying Factors ——– Correct Answer ——- (a/b)(c/d)=(ac)/(b*d)
Dividing Factors ——– Correct Answer ——- (a/b)/(c/d)=(ad)/(bc)
Factoring numbers ——– Correct Answer ——- a(c/d)= a+(c/d)= (ad+c)/d
Intergers ——– Correct Answer ——- {…,−3,−2,−1,0,1,2,3,…}
Real Numbers ——– Correct Answer ——- All numbers that are on number line.
Integers plus fractions, decimals, and irrationals
PEMDAS ——– Correct Answer ——- Parentheses, Exponents, Multiplication, Division,
Addition, Subtraction
Percentages ——– Correct Answer ——- part = (percent / 100) x whole
percent of change ——– Correct Answer ——- ((New value – old value)/old value) X
100
Distance from A to B ——– Correct Answer ——- √(x2 − x1)^2 + (y2 − y1)^2
Parallel and Perpendicular lines ——– Correct Answer ——- Parallel lines have equal
slopes. Perpendicular lines (i.e., those that make a 90∘90° angle where they intersect)
have negative reciprocal slopes: ????1m1 .????2=−1m2=−1.Parallel Lines (l ∥∥ m)
Mid-point of the segment AB ——– Correct Answer ——- M (????1+????2/2),(????1+????2/2)
Slope of the line ——– Correct Answer ——- (????2−????1)/(????2-????1)=????????????????/????????????