Combinatorics
Exponential Functions
Rational Expressions
Sequences and Series
Circles, Variation & Pascal
100
In how many different ways can I arrange my socks if I have 10 different pairs of socks?
10!=3628800
100
Does the exponential function y=.5(2)^x exhibit growth or decay?
Growth!
100
Simplify! (x+2)(x+4)/[(x-7)(x+4)]
(x+2)/(x-7)
100
What is the missing term in the sequence below? 8, ___, 36
22
100
What is the center and radius of the circle indicated below? (x-9)^2 + (y+4)^2 = 81
center: (9, -4) radius: 9
200
In how many ways can I choose 4 of you if there are only 10 students in class?
10!/(4!6!)=210
200
If y=a(3)^x goes through the point (2, 10), what is the value of a?
10/9
200
Simplify! (x^2 - 2x - 35)/(x^2 - 49)
(x+5)/(x+7)
200
What is the general rule for the sequence below? 6, 4, 8/3, ...
a_n = 6(2/3)^(n-1)
200
The cost per ticket to have a luxury box at a rock concert is inversely related to the number of people going. If 20 people go, each ticket is $55. How much is each ticket if 110 people go?
$10
300
In how many different ways can we rearrange the word mcgillen?
8!/2!=20160
300
A certain population grows at 2.72% per year. If there are currently 100 members of this population, how many will there be in 10 years (round to the nearest whole number)?
131
300
Simplify! (x^2 + 4x - 32)/(x^2 + 6x - 27)*(2x^2+23x+45)/(2x^2-3x-20) note: * means multiply
(x+8)/(x-3)
300
What is the 27th partial sum of the series indicated below? -27 + -22 + -17 + ...
1026
300
x is jointly related to p and q and inversely related to the square of v. Write an equation to model this situation.
x = apq/v^2
400
How many distinct permutations of the word “statistics” begin and end with the letter “s”?
8!/(3!2!)=3360
400
When will the number of bacteria in my petri dish be less than 10 if I currently have 10,000 and 5% expire every 15 minutes?
2020 minutes or 33.67 hours
400
Simplify! [(x-4)(x+7)/(x-5)(x-4)]/[(x^2-49)/(x^2-4x-5)]
(x+1)/(x+7)
400
What is the sum of the series indicated below? 6 + 4 + 8/3 + ...
18
400
Expand (4x - 3y)^4
256x^4-768x^3y+864x^2y^2-432xy^3+81y^4
500
Mr. Avigian owns 4 pairs of pants, 7 shirts, and 3 sweaters. In how many ways may he choose 2 of the pairs of pants, 3 of the shirts, and 1 of the sweaters to pack for a trip?
C(4, 2) · C(7, 3) · C(3, 1) = 630
500
Strega Nona's pasta pot is creating more and more pasta! There are currently 2 cups of pasta and it is growing by 50% every 5 minutes. Luckily, she returns and stops the pasta from growing after 2 hours. If Big Anthony can eat 10% of the pasta that is created every 15 minutes, how long until only 2 cups of pasta are left?
about 1385 minutes from when Strega Nona stops the pasta.
500
Simplify! [(12x^2-37x+21)/(6x^2-35x+49)]/[(2x^2-x-21)/(4x^2+9x-9)]
1
500
Josie knows the sum of an infinite geometric series is three times its starting value. What is the common ratio?
2/3
500
A circle has its center 4 units right and 8 units down from the point (2, 2). A point on the exterior is (12,2). Write an equation for the circle.
(x-6)^2 + (y+6)^2 = 100
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