Quadratics
Complete the Square for x^2+4x+9
(x + 2)^2 + 5
If I roll two dice and take the sum of their faces, what is the most likely number?
7
If I have 1,000,000 customers, and my company fell by 10% how many customers do I have?
900,000
the formula for a circle of center (0,4) radius 2
x^2+(y-4)^2=4
The compliment to 60 is
30
What is the vertex for x^2+6
(0,6)
if i have a 52 card deck and I pick out a 5 of spades, what are the chances I pick out another spade?
12/51
What type of graph would include a line of best fit?
Scatterplot
720
the supplement to 90 is
90
What is the vertex of 3x^2+5x-9
(-5/6, -11/12)
If I have three coins, what is the chance that all of them land heads?
1/8
from the set of numbers {1,2,3,4}, what is the mode?
There isn't one.
3 degrees to radians
pi/60
the reference angle of 20 is
Factor x^2+3x-4
(x+4)(x-1)
if I flip a coin twice, what is the chance I land heads then tails
1/4
if 60% of the world is above 6ft, how many arent taller than 6ft in a world of 5000 people
2000
The tangent of a circle would be _______ to the radius
Perpendicular/orthogonal/form a 90 degree angle
give me the 3 sides of a 30 60 90 triangle in terms of x
x 2x and xsqrt(3)
What are the roots of the quadratic equation 2x^2 - 5x + 3 = 0
3/2, 1
If I have a grid of 16 squares, 15 of the squares are safe and 1 of the squares are unsafe. What is the probability that I select all the squares that are safe?
1/16
What is the average of {1,2,3,4,5,6,7,8,...,99,100)
50.5
A circle inscribed on a square is what fraction of the area of the square
pi/4
give me 3 sides of a 45 45 90 triangle in terms of x
x x and xsqrt(2)