Show:
Probability/Counting
Quadratics
Circles
2D Geometry
3D Geometry
100
The probability that two flips of a fair coin will both result in "tails".
What is 1/4?
100
The quadratic formula.
What is (-b±√b²-4ac)/2a?
100
The ratio of the circumference of a circle to its diameter.
What is π (pi)?
100
The name for a quadrilateral with exactly one pair of parallel sides.
What is a trapezoid?
100
(4/3)πr³ is the formula for the volume of this object.
What is a sphere?
200
The minimum number of rolls of a fair die needed to ensure that at least one number comes up twice.
What is 7?
200
The number of real roots of the 2x²-3x+4=0.
What is 0?
200
The formula for the area of a circle.
What is πr²?
200
The interior angles of this regular polygon each measure 120 degrees.
What is a hexagon?
200
The surface area of a cube with side length s can be found using this formula.
What is 6s²?
300
In a room of 8 people, the number of handshakes needed before each person has shaken each other person's hand exactly once.
What is 28?
300
The x-coordinate of the vertex of y=4x²-2x+9.
What is 1/4?
300
The area of a square inscribed in a circle with radius 1.
What is 2?
300
For a right triangle with legs of length 9 and 40, this is the length of the hypotenuse.
What is 41?
300
The parabola, hyperbola, ellipse, and circle are all obtained by slicing this three-dimensional object.
What is a cone?
400
The probability that a randomly generated three-digit number is made up of only prime digits. (Without simplifying, of course).
What is 64/900?
400
The graph of the equation y=ax²+bx always passes through this point on the coordinate plane.
What is the origin?
400
The number of radians in three and a half revolutions of a circle.
What is 7π?
400
The height of an equilateral triangle with side length of 1.
What is √3/2?
400
The length of the longest diagonal of a rectangular prism with dimensions of 2 by 3 by 6.
What is 7?
500
The number of unique arrangements of the word PANAMA.
What is 120?
500
A parabola, the shape of a quadratic function, is made up of all points equidistant from a point called the "focus" and a line call this.
What is the directrix?
500
The maximum number of regions that three circles can divide the plane.
What is 8?
500
This is the area of a triangle with sides of length 5 and 6 with an included angle measuring 30 degrees.
What is 15/2?
500
The number of faces on an icosahedron, a Platonic solid in which each face is an equilateral triangle.
What is 20?