PRE-CALC
ALGEBRA
GEOMETRY
CALCULUS
RIDDLES
100
This model is used to find values of sine, cosine, or radians based on certain triangle proportions.
What is the unit circle?
100
Area formula for trapezoid
What is 1/2* (bottom base+top base)*(height)?
100
sin(x) if cos(x) =3/5
4/5
100
What is the chain rule?
F′(x)=f'(g(x)) . g'(x)
A formula used in calculus to find the derivative of a composite function
100
When Josh was 8, his brother was half his age. Now that Josh is 14, how old is his brother?
10
200
Law of Sines
what is sin(a)/A = sin(b)/B = sin(c)/C?
200
Write the equation 2x - 8y = 10 in slope-intercept form.
y= 1/4x - 5/4
200
The circumference of a circle is 30
. What is its area?
225pi
200
The second derivative of position.
What is acceleration?
200
If it took 6 people 9 hours to build a barn, how long would it take 12 people to build the same barn?
None, because the barn is already built.
300
Given that f(x) = x^3 - x^2 + 2x + 4 and g(x) = 2x^2+(5x*2x) + 7, what is f(x) + g(x)?
x^3+11x^2+2x+11
300
Given, 5x−3<7−3x. What is x?
x<5/4
300
An equilateral triangle has side lengths of 6. What is the area of the triangle?
9√3
300
antiderivative of ln(x^2)*9x
9(x^2ln(x)-x^2/2)+c
300
What is the next number in the series? 7,645 5,764 4,576
6,457
400
If sinx+cosx=1/5 and0<x<pi, Then tanx=
-4/3
400
equation of a line parallel to x−y−12=0 that passes through (2, -5)?
what is y=x-7?
400
In the triangle ABC sides AB and CB have equal lengths and the measure of angle ABC is equal to 36 degrees. What is the measure of angle BOC where O is the center of the circle?
144
400
The method used to integrate ∫x . exdx derived from the product rule.
What is integration by parts?
400
A group of people collects $529. If each person contributes an amount in dollars equal to the total number of people in the group, how many people are in the group?
23 people
500
the equation of a circle that has its center at the origin and is tangent to the line with equation 3x-4y=10?
What is x^2+y^2=4?
500
Vertex of concave up parabola that goes through (1,4) and (-1,4).
What is (0,2)?
500
The measure of one interior angle of a regular polygon is 168.75. How many sides does it have?
32
500
Evaluate: 𝑑/𝑑𝑥[14𝜋 sin(√𝑥)]x=pi^2
-7
500
Complete the following sequence: 24, 120, 720, ????
5040