Algebra
Factor: 25x2-4
Use (a+b)(a-b) - Difference of Squares
(5x+2)(5x-2)
The equation of the axis of symmetry of the graph of y=2x2-3x+7 is...
x=3/4
In The Lion King, what was the name of Simba's father?
Mufasa
The number of hours studied by five students are: 3, 4, 5, 6, and 7. What is the standard deviation of the hours studied?
1.41
Foil: (x+2)(x+3)
x² + 5x + 6
What are the roots of the following function
f(x)=x2-3x-18
x=-3 and x=6
Which country hosted the 2016 Summer Olympics?
Brazil
Given a scatter plot where the points (2, 3), (4, 6), and (6, 8) are plotted, what is the general trend (positive, negative, or no correlation)?
Positive correlation
Factor: 3x2+x-2
(3x-2)(x+1)
Write the equation that would represent the following situation.
An initial patch of molds in a laboratory covers 5 cm2 The area of the patch is increasing at a rate of 12% per day. What will be the area of the patch after x amount of days
f(x)=5(1.12)x
Who wrote the Harry Potter series?
J.K. Rowling
The following data shows the number of hours studied and the corresponding test scores:
Hours studied: 1, 2, 3, 4, 5
Test scores: 50, 60, 70, 80, 90
What is the equation of the line of best fit?
y = 10x + 40
Simplify: (s-7)2
s2-14s+49
A rectangle is four times as long as it is wide. Its perimeter is 200cm. Find the length of the rectangle
80cm
What is the name of the famous clock tower in London?
Big Ben
If the average height of students in a class is 160 cm with a standard deviation of 5 cm, what is the z-score for a student who is 170 cm tall?
2
Evaluate:
log₂1/8
-3
Write the geometric sequence for the following sequence?
3, -12, 48, ...
Use the form
y=a(r)^x
y=3(-4)^x
What is the name of Spongebob Squarepants' pet snail?
Gary
Mr. Bean's class has an average grade of 87. Later on he realizes he left out Joe's score. His grade was a 65. Will the mean increase, decrease or remain the same?
Decrease