Show:
Algebra
Geometry and Trigonometry
Number System
Statistics and Probability
Patterns, Sequences and Series
100
Which property proves x+y=y+x
Communitive property of addition
100
What type of triangle has angle measures of 21°, and 67°
Obtuse
100
Simplify -13-(-7)+12-8
-2
100
Find the median: 12, 14, 18, 22, 36
18
100
What is the next number in the pattern: 2, 8, 32, __
48
200
Start with a number y, multiply it by 7, and then add 4. Write this as an algebraic expression.
7y+4
200
The measure of an angle is 178°. What is the measure of a supplementary angle?
2°
200
Simplify: (w^9)(w^6)
w^15
200
On a coin, what is the probability of flipping 3 tails in a row. Write your answer as a decimal.
0.125
200
What is the 11th term in a sequence represented by: f(n)=3n-7
26
300
Andrew is two years older than Beatrice, and Chris is three years younger than Beatrice. The product of Andrew's age and Chris' age is 66. How old is Beatrice?
9 yrs old
300
GH has endpoints at G(4, 7) and H(2, 3). Find the midpoint M of GH.
(3,5)
300
What is the correct interval notation for the following statement: -15
(-15, 5) U (11, 24)
300
Jim, the music reporter for his high school newspaper, is writing an article about this year's school musical. Jim wants to interview one male and one female cast member, and there are 2 boys and 4 girls in the musical this year. Jim also wants to interview one of the 5 students working backstage on the tech crew. How many different sets of people can Jim interview?
40
300
What is the eleventh term of the geometric sequence 3, 6, 12, 24, ... ?
3,072
400
What is the equation of the directrix of the parabola whose equation is y^2+12x=0?
x=3
400
If sin(x)=3/5, what is the value of cos(x)
13/12
400
Simplify (-7)/(10+sqrt(3))
(-70+7sqrt(3))/(97)
400
Team A and Team B are playing in a league. They will play each other five times. If the probability that team A wins a game is 1/3, what is the probability that team A will win at least three of the five games? Write your answer as a percent.
20%
400
Find the sum of the following infinite geometric series: 1+2/3+4/9+8/27+...
3
500
The equation x^5-2x^4+2x^3=0 has how many distinct real and complex roots:
1 distinct real root and 2 distinct complex roots
500
Find the approximate perimeter of an ellipse represented by the following equation: (x^2)/(16)+(y^2)/9=1 Round your answer to the nearest tenth
22.1
500
Express 3-7i in the form r(e)^ix
7.616(e)^5.117i
500
A glazier buys his glass from four different manufacturers - Clearglass (10%), Strongpane (25%), Mirrorglass (30%) and Reflection (35%). In the past, the glazier has found that 1% of Clearglass' product is cracked, 1.5% of Strongpane's product is cracked, and 2% of Mirrorglass' and Reflection's products are cracked. The glazier removes the protective covering from a sheet of glass without looking at the manufacturer's name - in other words, it's a random choice. He finds the glass is cracked. What is the probability it was made by Mirrorglass? Write your answer as a percent.
34%
500
What is the x^3 term in the taylor expansion for x(e)^x when a=0?
(1/2)(x)^3