Geometric Sequences and Series
Compound Interest
Annuities and Amortization
Exponents and Logarithms
Random Math
100

The ratio between each term in a geometric sequence.

What is a common ratio? 

100

The idea of taking a percent of principle as interest, and adding it to the principle repeatedly. 

What is compound interest? 

100

The concept of making regular payments into an account to increase the total principle over time.

What is an annuity? 

100

The inverse of an exponential function. 

What is a logarithmic function? 

100

The radian angle of 11pi/6 converted to degrees. 

What is 330 degrees? 

200

The general form of a geometric sequence

a= a1*rn-1

200

The handy tool that you can use to solve problems involving finance. 

What is the finance app in the graphing calculator?

200

The concept of making regular payments into an account to decrease the principle owed over time. 

What is amortization? 

200

The asymptote of the equation below: 

y = 0.4^x - 3

What is y = -3? 

200

The binomial expansion of the terms: 

(3x - 1)(x - 2)

What is 

3x2-7x+2? 

300

The missing term in the sequence: 

20, X, 5, 2.5, 1.25… 

What is X = 10
300

The equation for future value, as represented by the sentence below: 

A starting principle of 10,000 Growing at a rate of 8% per year, for 10 years. 

What is 

FV = 10,000(1.08)^10

300

The number of payments needed to pay off a $1,000 loan with an interest rate of 3% per year, making regular payments of $200 per year. 

What is 6 payments? 

300

The exponential function, expressed as a logarithmic form: 

log15(200) = x 

What is: 

15x = 200?

300

The prime factorization of the number 260. 

What is 22*5*13? 

400

The sum of the first ten terms in the following geometric series: 


3 + 1 + 1/3 +… 

What is 4.49? 
400

The interest accrued after investing $3000 into an account at an interest rate of 3% per year for 5 years. 

What is $477.82?

400

The amount of money in the bank after making regular payments of $40 a month into an account with $100 in it, at an interest rate of 2% per year, for 10 years. 

What is $4941.56? 

400

The value of x in the expression below: 

10x = 965

What is x = 2.98?

400

The concept of using perpendicular bisectors between points to draw boundaries where points in the plane are closest to points of interest. 

What are Voronoi Diagrams? 

500

The sum of all terms in the following geometric series: 


1/2 + 1/4 + 1/16 + 1/32 + … + 1/2^n

What is 1?

500

The interest rate as a percent after a total of $25,000 is accrued over the course of 10 years, with an initial value of $20,000. 

What is 2.26%?

500

The payment amount per month needed to pay off a loan of $12,000 at an interest rate of 2% per year, in 10 years. 

What is $100.84? 

500

The number of minutes needed for a cup of tea to become 35 Celsius, if it starts at a temperature of 100 Celsius and cools at a rate of 10% per minute, where the room temperature is 20 Celsius. 

What is 15.89 minutes? 

500

The range of area of a rectangle, if the sides are 4 by 5 inches, measured correctly to the nearest inch. 

What is 15.75 ≤ A < 24.75?