Distributive Property
Fractions
Equations
Imaginary Numbers
Challenge
100
What is 2(x-4)
2x-8
100
What is 1/2+1/4
3/4
100
Solve for x and y 4x+3y=26 3y+5x=31
x=5 y=2
100
i^2
-1
100
What is |3x+2|>3
x>1/3 or x<-5/3
200
What is 2x(x+4)
2x^2+8x
200
What is (1/2+3/4)*3/7
15/28
200
Solve using elimination: 4x+2y=9 3x-2y=10
x=19/7 y= -13/14
200
Simplify the square root of -45.
3i*sqrt(5)
200
A right triangle with angle θ=45, and has a leg of 5. Find the sinθ, tanθ, and cosθ.
sinθ=[sqrt(2)]/2 tanθ= 1 cosθ= [sqrt(2)]/2
300
What is 3y^3(4x+4y^2+y)
12xy^3+12y^5+3y^4
300
What is (5^2/4)/(3/2)
25/6
300
Solve for x and y 5x-y=12 y-6x=20
x=-32 y=-172
300
Simplify: sqrt(-80)+13
4i*sqrt(5)+13
300
Simplify 2x^2 +8x+4
-2 +/- sqrt(2)
400
What is a-(4+12-6g)
a-16+6g
400
What is 5/[3+sqrt(2)] Rationalize if needed. sqrt=square root
[15-5*sqrt(2)]/7
400
Simplify and find x: (x-17)^2=13
x=sqrt(13)+17
400
Simplify: 5(6i+8)+3(5x+6i)
What is 48i+15x+40
400
A 90 degree angle lies in a unit circle, and this angle includes the point (0,1). What is the cosine90 and sine90?
cosine90=0 sine90=1
500
What is (x-4)^2
x^2-8x+16
500
What is [7+sqrt(5)]/[4+sqrt(3)]
[28-7sqrt(3)+4sqrt(5)-sqrt(15)] ---------------------------------------- 13
500
Determine whether or not the ordered pair (1,13) is a solution to the system of equations: y=9x+4 3x-2y=-8
No, it isn't (it is only a solution to the first equation).
500
Divide: (5i+i)/i
6
500
What is the approximate surface area of a cone whose slant height is 6 and radius is 3 ? Use the formula: A = pi R^2+ pi R*S
85
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