SAT Math Prep Exam Questions And Answers All Correct.

A square inscribed in a circle has a diagonal that is the same length as the ______________ of the circle and a 45-45-90 triangle can be formed from two of the circle's ____________ - correct answer diameter, radii To solve problems involving absolute value, write _____ equations. - correct answer two A number is divisible by 3 if the sum of its _______ is divisible by 3. - correct answer digits A number is divisible by 9 if the sum of its _______ is divisible by 9 - correct answer digits A number is divisible by 6 if it is divisible by ___ and ___ - correct answer 2 and 3 The sum of the interior angles in a triangle is _____ - correct answer 180⁰ The sum of the interior angles of a polygon is ________, where n is the number of sides. - correct answer (n-2)180⁰ The sum of any two sides of a triangle must be _______ than the third side. - correct answer greater When Backsolving, start with the ________ answer choice. - correct answer middle When a figure is drawn to scale, _________ lengths, angles, and areas. - correct answer eyeball or measure When solving three simultaneous equations with three variables, use ___________. - correct answer Backsolving The midpoint (x,y) of two points is the _________ of the x's and y's - correct answer average Parallel lines have _______ slopes. - correct answer equal Perpendicular lines have slopes which are ________ ________ of each other. - correct answer opposite reciprocals The sum of the exterior angles of a convex polygon is _____, no matter how many sides it has. - correct answer 360⁰ Isosceles triangles have two congruent ______ and two congruent _______ angles. - correct answer legs, base Squares: 11², 12², 13², 14², 15², 16² - correct answer 121, 144, 169, 196, 225, 256 Cubes: 2³, 3³, 4³, 5³ - correct answer 8,27,64,125 If a problem involves even and odd numbers, a good method is ____ ________. - correct answer Pick Numbers When Picking Numbers, do not use 0, 1, or 2 and evaluate ____ choices. - correct answer all In problems involving averages, start by finding the ____ of all the numbers. - correct answer sum With word problems where answer choices are numbers, use _____________. - correct answer Backsolving With word problems where answer choices include variables, use ______ __________. - correct answer Pick Numbers The ratio of the sides of a 30-60-90 triangle is - correct answer 1: √3: 2 The ratio of the sides of a 45-45-90 triangle is - correct answer 1: 1: √2 When using process of eliminate to narrow answer choices, eliminate answers that are too ______, too _____, or have the incorrect ________. - correct answer large, small, sign The number of degrees in a circle equals _____ - correct answer 360 The ones digit is also called the ______ digit. - correct answer units A proportion is solved by __________ multiplying. - correct answer cross Figures are drawn to scale unless ________. - correct answer They are labeled "not drawn to scale" Vertical lines have the equation x =__ _______ - correct answer a constant Horizontal lines have the equation y = __ _________ - correct answer a constant When solving two equations with two variables, first try the _____________ method. - correct answer elimination List the prime numbers that are less than 30 - correct answer 2,3,5,7,11,13,17,19,23,29 Composite numbers are numbers that are not _______. - correct answer prime If a figure is "not drawn to scale" you can _________ it to scale - correct answer re-draw Before guessing on multiple choice questions, eliminate at least _____ of the answer choices - correct answer two For grid-in answers, do not _________ unless asked to - correct answer round If you don't know how to do a grid-in question, always _________ - correct answer guess You do not need to reduce fractions unless they ______ ____ in the grid-in boxes - correct answer won't fit Factor x² - 2xa + a² - correct answer (x - a)² Factor x² + 2xa + a² - correct answer (x + a)² Factor x² - a² - correct answer (x + a) (x - a) When guessing remember that difficult problems will not have __________ answers - correct answer obvious Equilateral triangles have three congruent angles each equal to ____ - correct answer 60⁰ Pythagorean Theorem for right triangles - correct answer a² + b² = c² Name two Pythagorean triples - correct answer 3-4-5, 5-12-13 If a right triangle has two known sides that belong to a Pythagorean triple, check if the __________ has the correct length before concluding it is a triple - correct answer hypoteneuse In percent problems where the answer choices are all percents, Pick the Number, ____ to start with. - correct answer 100 If a grid-in question asks for an answer within a range of values, convert answers to _______ - correct answer decimal When using your calculator be careful about ______ of operations. - correct answer order Remainder problems are often easier if you _______ ________ - correct answer Pick Numbers Percent change = (new - original) ÷ ___________ - correct answer original If a triangle is inside a circle, the sides may coincide with ________ of the circle - correct answer radii In combinations problems, make a systematic ______ of the possibilities - correct answer list An arithmetic sequence is a list of numbers (terms) where consecutive terms have a fixed _________ - correct answer difference A geometric sequence is a list of numbers (terms) where consecutive terms have a fixed _________ - correct answer ratio When solving equations involving radicals, first _______ the radical, then ________ both sides - correct answer isolate, s