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Final Countdown! CEESA Math Counts Q #1 x x x Evaluate x at x = 2 Answer Q #2 Each interior angle of a regular polygon measures 144. The polygon has _____ sides. Answer Q #3 11213 = _______ as a base 10 number Answer Q #4 3 and 2 are the first two terms of a geometric th sequence. The 4 term must be ______ Answer Q #5 The hypotenuse of a 30-60-90 triangle measures 10. How long is the longest leg? Answer Q #6 Consider the rhombus 0 with a 60 angle and each side measuring 60. What is its area? Answer Q #7 Consider the cube with diagonal 1. Each side has a a . length of b Evaluate the sum a + b. Answer Q #8 How many of the first 100 positive integers are divisible by 1,2,3 and 4? Answer Q #9 If three times the larger of two numbers is four times the smaller and they differ by 8, what is the larger of the two numbers? Answer Q #10 If x 5 3, thenx 5 ? 3 Answer Q #11 The legs of a right triangle measure 13 and 84. The length of its hypotenuse is ______. Answer Q #12 The diagonal of a square measures 20. What’s the area of the square? Answer Q #13 Find the largest whole number such that 7 times the number is less than 200. Answer Q #14 If the ratio of 2x-y to x+y is 2 , what’s the ratio of 3 x to y? Answer Q #15 AB, BC, CD, and DA of convex quadrilateral ABCD have lengths of 6,8,24 and 26 respectively, with m ABC = 90. The area of the quadrilateral is ________ C 8 24 B D 6 26 A Answer Q #16 P(x) = + – The degree of P is ____________ Answer 2 (x 5 3 1) (x 4 3x) Q #17 Find the sum of the digits of the largest even three digit number which is not changed when its units and hundreds digits are interchanged. Answer Q #18 3 5 9 17 33 65 7 ______ 2 4 8 16 32 64 Answer Q #19 Rectangle ABCD has area 72 with E and G the midpoints of sides AD and CD respectively. What is the area of rectangle DEFG? D E A C G Answer F B Q #20 4 4 If 1 0 , 2 x x 2 then x must be ___ Answer Q #21 If four times the reciprocal of the circumference of a circle equals its diameter, what must its area be? Answer Q #22 Opposite sides of a regular hexagon are 12 cm apart. How long, in cm, is each side? Express in a b form Answer Q #23 0 In the figure shown, m E = 40 and BA BC CD. Find m ACD B A E C D Answer Q #24 In triangle ABC, AB = AC and m A=80. CE = CD and BF=BD. mEDF = ___ A E Answer F C D B Q #25 If one minus the reciprocal of (1-x) equals the reciprocal of 1-x, then x must be ______ Answer Q #26 The sum of the distances from one vertex of a square with sides of length 2 to the midpoints of each of the sides of the square is ____________ Answer Q #27 For how many real numbers x 2 is ( x 1) a real number? Answer Q #28 If the side of one square is the diagonal of a second square, what is the ratio of the area of the first square to the area of the 2nd one? Answer Q #29 The sum of the first 80 positive odd integers subtracted from the sum of the first 80 positive even integers is ________ Answer Q #30 What is the remainder when 51 x + 51 is divided by x+1? Answer Q #31 Quadrilateral ABCD is inscribed in a circle with side AB extended beyond B to pt. E. If m BAD = 92 and m ADC = 68, find m EBC . Answer Q #32 What is the smallest prime number that divides the sum 3 11 + 5 13? Answer Q #33 If one gallon of paint is needed to paint a statue 6 m high, then the number of gallons it will take to paint 540 statues similar to the original but only 1m high is ___________ Answer Q #34 The sum of all the integers between 50 and 350 which end in a 1 is _________ Answer Q #35 A chord which is the perpendicular bisector of a radius with length 4 in a circle, has length _________ Answer Q #36 .5 – .05 can be written as a simple a fraction in form. Evaluate a + b b Answer Q #37 Given the ratio of 3x-4 to y+15 is constant and y=3 when x=2, find x when y=12. Answer Q #38 The length of the common chord of two intersecting circles is 16 cm. If their radii are 10 cm and 17 cm, than the distance between their centers will be _______ cm. Answer Q #39 The sides of triangle BAC are in the ratio 2:3:4. BD is the angle bisector drawn to the shortest side AC , dividing it into segments AD and CD. If the length of AC is 10 then the length of the longer segment of AC, in simple a form, is b _______ Answer Q #40 The real value of x such that 64x-1 divided by 4x - 1 equals 2x 256 is _________ Answer Q #41 ab Let a b ab . a Evaluate, in simple form, b 4 4 4 Answer Q #42 A circle passes through the vertices of a triangle with sides having lengths of 9, 40, and 41. Find the radius of this circle. Answer Q #43 The arithmetic mean of the 52 successive positive integers beginning with 2 is _____. Answer Q #44 How many points are equidistant from a circle and two parallel tangents to the circle? Answer Q #45 A square and a circle have equal perimeters. The ratio of the area of the circle to the area of the square is ______. Answer Q #46 The smallest value of 2 x + 8x for real values of x is _______. Answer Q #47 x x If f(x) = , then f(i) = ___ x 1 4 where i = 2 1 Answer Q #48 If the point (x,-4) lies on the line containing points (0,8) and (-4,0), then x= ______ Answer Q #49 The number of digits in 12 8 the number N=2 · 5 is _______ Answer Q #50 When 0.363636 . . . is a written in simplest b form, a+b = _____ Answer Q #51 y 2 xy Given z x 3x y2 2 2 Find the value of z when x = 1 and y = 7. Answer Q #52 The equation x - 5 2 x 1 has two solutions for x. Their product is ______. Answer Q #53 3 x 2 9 x 2 The equation 2x 5 x 4 has two solutions. The smallest of the solutions is ____. Answer Q #54 If f(x) = – 3x + 5 and 2 f(n+4) = an +bn+c, find the sum a+b+c. 2 x Answer Q #55 1 3 Two lines with slopes of and 4 4 have y-intercept of 2 and 4, respectively. The lines intersect at (a,b). Evaluate a÷b. Answer Q #56 Robert is currently three times Mark’s age. In 17 years, Robert will only be twice Mark’s age. How old was Robert when Mark was born? Answer Q #57 Solve for x: -22x + 24 = (10)2 + 3(5x) Answer Q #58 Find the sum of all the integral solutions for x where 3 x ≤ 4. Answer Q #59 Solve for x: 2 x 2 x 4 + 2x = 3-5 + x 2 Answer Q #60 If x=3, then 2 x 2 x 15 x 60 3 2 2x must be _______. Answer Q #61 When x 5 3 is solved, what is the sum of the roots? Answer Q #62 The equation – 10x -8 =0 has a discriminant of ________. 2 3x Answer Q #63 When the roots of 2 2x -2x-1 = 0 are found, their product is ________. Answer Q #64 The solution to the system 2x+5y=4 -7x-20y=-4 is (a,b). Evaluate ab ab Answer Q #65 2 x 6 y 2 y 3 4 If 2 and 2 x= -1, find all possible values for y. Answer Q #66 John starts at a point A on a level piece of land. He travels 20 miles due north, 24 miles due east, and 30 miles due south. How many miles is John from point A? Answer Q #67 If both diagonals are drawn in a square, how many right isosceles triangles are contained in the figure? Answer Q #68 If the measures of the interior angles of a triangle are in the ratio 3:5:10, find the ratio of the largest exterior angle to the smallest exterior angle. Answer Q #69 Given isosceles triangle ABC and square BCDE with common side BC. The area of the triangle is 70 and the area of the square is 196. Find the length of AD. Answer Q #70 If A represents the arithmetic mean of 8 and 24 and B represents the positive geometric mean of 4 and 9, then the simplified ratio of A:B is ______. Answer Q #71 Find the circumference of a circle with area 196 Answer Q #72 (12345)(12345) – (12350)(12340) = _____ Answer Q #73 An equilateral triangle has an area of 432 3. Determine the radius of the circle which circumscribes it. Answer Q #74 Expressed in radian measure and in terms of , an exterior angle of a regular 16-sided polygon has what measure? Answer Q #75 Given: is not a quadrantal angle Evaluate: 7sin (2csc)(sec2 – tan2 ) Answer Q #76 What percent of 650 is 143? Answer Q #77 1 2 1 2 (.5) (1.5) (27) 1 2 .5 is what whole number? Answer Q #78 Evaluate 9 .08 2 51 Answer 3 Q #79 If 2 x .6 5 64 then x = ____ Answer Q #80 A trapezoid has area 58. If its altitude is 4 and one base is 21, what is the length of its median? Answer Q #81 Given c= {A,I,S,B,!}. Excluding Φ, how many subsets does c have? Answer Q #82 0 When (7tan )(sin 90 )(cos ) is written in a b 4 4 form, a b = ________. Answer Q #83 Consider the 7-digit palindrome _ _ 23_ _5 where the only given digits are those shown. How many possible palindromes exist here? Answer Q #84 The sum of the first eight Fibonacci numbers is ______. Answer Q #85 Excluding itself, what is the sum of all the factors of 96? Answer Q #86 Consider the graph of 2 y = -2x + 20x – 46. The largest value y can be is _____. Answer Q #87 If a1 = 1, a2 = 2, and an = an-1-an-2 for n>2, then a6 must be _______. Answer Q #88 Given the arithmetic sequence 5,9,. . . , which term of the sequence is 113? Answer Q #89 Evaluate 7 3 8(2 [5 10] 2) 1 22 Answer Q #90 Consider the rhombus ABCD where AB=25 and AC=48. The area of this rhombus is __________. Answer Q #91 Consider the graph of y 4 sin x 6 3 In radians, the function has a period of _________. Answer Q #92 Given the equation 6x2+2x+38= -4-25x has two roots. When written in simplest a form the sum of these roots is ______. b Answer Q #93 When changed to the Fahrenheit scale, 6 2 0C = ________ 0F 3 Answer Q #94 The decimal numeral 49 is equivalent to which binary numeral? Answer Q #95 0 26 When is written in radian a form, simplified to , then b ab = _______. Answer Q #96 When 1 sin 2 0 3 cos 0 1 is written in degree form, the result is _______. Answer Q #97 110 5 = _____2 Answer Q #98 4 and 16 are the 1st and 3rd terms (respectively) of two sequences, one arithmetic and one geometric with r<0. Find the sum of the 4th terms in these two sequences. Answer Q #99 There are _____ prime numbers smaller than 30. Answer Q #100 ( 9 )! ! ( 16 )! _____ Answer Q #101 Let A be the origin and B have (3,3) as coordinates in the coordinate plane. You start at A and end at B by moving up and to the right only. How many such paths are possible? Answer Q #102 The line 5x+2y-18 = 0 has an x-intercept of a and a yintercept of b. In simplest rational form, a+b = _____. Answer Q #103 The sum of the squares of the first three composite numbers is ________. Answer Q #104 The square of the sum of the first four prime numbers is ____. Answer Q #105 If the diameter of a sphere is 15 , then its surface area must be _______. Answer Q #106 An angle of 77 radians is 90 supplementary to an angle of ________ degrees. Answer Q #107 1000002-102 = _____ 10 Answer Q #108 Two sides of a triangle have lengths of 7 and 11 and the 3rd side also has an integral length. What is the largest perimeter this triangle can have? Answer Q #109 2 2 x -4x+y +6y-12=0 is the equation for a circle whose circumference is exactly ___________. Answer Q #110 A bag has 35 green marbles, 3 red marbles, and the others are all black. Reaching in blindfolded, the 1 probability of picking a red one is . 24 How many black marbles must be in the bag? Answer Q #111 Tom sold all his corn in one day to three customers. The first bought half the corn plus half an ear of corn. The second bought half the remaining plus half an ear. The third customer did the same. How many ears of corn did Tom sell? Answer Q #112 6 ( 3 n 5 ) n 0 Answer ________. Q #113 2 log4 64 – 2(4!) = _____ Answer Q #114 Given y= 2sinx+9, find the smallest possible value for y. Answer Q #115 Given f(x)=3x-5 and 3 g(x)=5-x , evaluate f(g(1))-g(f(1)) Answer Q #116 10223 = ______13 Answer Q #117 One fifth of the sum of the first 24 counting numbers is ________. Answer Q #118 If a sphere has diameter 3 192 , then it must have a volume of ________. Answer Q #119 5 2 y x 20 x 48 2 is a parabola with vertex at (h,k). Find the value of k÷h. Answer Q #120 3.125.32 .0625 __________ Answer Q #121 An equilateral triangle of 300 area circumscribes a circle. The diameter of the circle is _________. Answer 3 Q #122 A diagonal of a cube has length 8 3. Find the surface area of this cube. Answer Q #123 Given the arithmetic progression -5,-4.6, -4.2, ..., find the 86th term. Answer Q #124 Evaluate 2 [5!-(4-4)! – 4!] Answer Q #125 Evaluate 12 12 12 ... Answer Q #126 3 If 68 2 x .5 40 4 x 10 x , 4 then x = _________ Answer Q #127 It’s known that M is the midpoint of AB with A (x,-8) and B (20,4) and MB = 2 10 . There are two values of x that satisfy these requirements and their sum is ____. Answer Q #128 If 13 1 1 2 x 1 4x 4 4x 4 then x = _____. Answer , Q #129 If v = 3+i and w= 1-i where i= 1 then, in simplest a+bi form, v = _________. w Answer Q #130 A dodecagon (12-sided polygon) has _______ distinct diagonals. Answer Q #131 When rolling a pair of fair 6sided dice, the probability their sum will be 3 or 8 is _______. Answer Q #132 It’s known that x >10 and 3 2 x -23x +92 = 4x. Solve for x. Answer Q #133 2 3i 3 4 6 = _____ where i 1 Answer Q #134 If the diagonals of a rhombus are 32 and 60, find its perimeter. Answer Q #135 If a convex polygon has 135 diagonals, then it must have _____ sides. Answer Q #136 2 ax +84x+36 The quadratic will be a perfect square for what value of a? Answer Q #137 A right circular cone has a 9 height of and a base circumference of 6 . Find its volume. Answer Q #138 The hypotenuse of a right 5! triangle has a length of 0! , 3 8 n with one leg having n 1 for its length. How long is the other leg? Answer Q #139 An isosceles trapezoid has two base angles of 135, a leg of 3 2 and a base of 4. Find its area. Answer Q #140 2 9x +30x+18 A quadratic will be a perfect square if ________ is added to the constant term. Answer Q #141 A rectangle’s length is three more than its width, and the product of its diagonals is 369. How wide is the rectangle? Answer Q #142 1+2+3+ …+n = 406 therefore, n=______ Answer Q #143 The slope of a line through the origin that is perpendicular to 1 the line x 7 y 1 2 must be ________. Answer Q #144 The product of the diagonals of a square is 50. What is the perimeter of the square? Answer Q #145 The surface areas of two spheres are 36 and 4 respectively. What is the ratio of their respective volumes? Answer Q #146 If log 50 + logx = 3 then x = ______ Answer Q #147 36x=2345 x=_ Answer Q #148 The complement of angle A is 12 less than half of its supplement. How many degrees is angle A? Answer Q #149 The number ten trillion has how many zeros? Answer Q #150 To the nearest radian, 0 630 = _____ Answer Q #151 If x z (the set of integers), and 0 ≤ y≤ 81, then there are ______ solutions for x. Answer 2 y=x , Q #152 If 9x 3 9 27 x 2 ,then 2 x = ___ Answer Q #153 If x 12 x 6, then x must be _______. Answer Q #154 are two chords of a circle that intersect at B. If AB=6, DB=3, and BE=4 than AC must be _______. Answer AC and DE Q #155 A cube circumscribes a sphere with surface area 9 . What is the surface area of the cube? Answer Answers! 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