Mathnasium Review Exam Questions With Correct Answers

Mathnasium Review Exam Questions With Correct Answers What is a real number? - answerany number without 'i' what is a constant? - answerspecific fixed number What is an integer? - answera whole number What does quotient mean? - answerto divide Complementary angles - answeradd to 90 degrees supplementary angles - answeradd to 180 degrees On a 30,60,90 triangle, what are the sides starting smallest? - answerx, xroot3, and 2x On a 45,45,90 triangle, what are the side ratios? - answerx, x, and xroot2 How do you add vectors together? - answer<x,y>+<a,b>=<x+a,y+b> domain - answerx values range - answery values ©SIRJOEL EXAM SOLUTIONS 12/3/2024 11:27AM how do you add matrices? - answerSimply add the corresponding places (if they are different sizes then it is undefined) how do you multiply matrices by a constant? - answerjust multiply every number by the constant and leave it in the same shape how do you multiply matrices by another matrix? - answerthere should be the same number of rows as the first matrix and the same number of columns as the second, and do almost a foiling method How do you simplify a matrix? - answerI a b I I c d I = ad-bc How do you remember absolute value inequalities? - answergreatOR, less thAND What should you always be on the lookout for regarding squares and square roots? - answertwo answers slope of a horizontal line - answerzero slope of a vertical line - answerundefined what is the discriminant? - answerb^2-4ac What does a discriminant tell you? - answerif 0=1 solution if + = 2 real solutions ©SIRJOEL EXAM SOLUTIONS 12/3/2024 11:27AM if - = 2 complex solutions/no real solutions What slopes do perpendicular lines have? - answernegative reciprocal What is a scalene triangle? - answerall different lengths/angles equation of a circle - answer(x-h)²+(y-k)²=r² volume of a sphere - answer4/3πr³ volume of a cylinder - answerπr²h volume of a cone - answer1/3πr²h A triangle formed by three points on a circle with the hypotenuse being the diameter will always be a... - answerright triangle area of a circle - answerπr² Circumference of a circle - answer2πr what are parallelograms - answertwo sets of parallel lines with no right angles what is a rhombus - answera parallelogram with 4 congruent sides area of a trapezoid - answer1/2(b1+b2)h how do you find the interior angle