Problems 1
The probability of a coin coming up heads after heads had already been flipped twice
What is
1/2?
aba^2b^2a^3b
What is
a^6b^4?
x^2=1
What is
x=+-1?
xy^3x^2xy^3x
What is
x^5y^6?
(-1/4)/(1/3)=(16/9)/x
What is
x=-64/27?
1/5(2 1/3*1/4-7/12)
What is 0?
-b^2+a+b
if a = -2 and b=-1
What is -7?
3ac(ab+ac+bc)
What is
3a^2bc+3a^2c^2+3abc^2?
-b^3+2ab
if a =-1 and b=-2
What is 5?
(-(-3)^2-2^3(2^3-2*6)+3)/(2^2(2^3-4))
What is
13/4?
The sum of
ab^2+bab+2a^2ab+2bab-baa^2
What is
4ab^2+a^3b?
The resulting number when 125 is increased by 60%
What is 200?
The sum of
-xy^3+x^2xyy^2+x^3y^3-3xyy^2
What is
2x^3y^3-4xy^3?
What is 9?
The probability of picking a white marble than a green one from an urn with 2 white, 3 green, and 5 red if the first marble is replaced
What is
3/50?
3x+4-2x-x=4x-5
What is
9/4 or 2 1/4?
The value of m in the triangle
What is
sqrt(85)?
The complement and supplement of 22.5o angle
What are 67.5o and 157.5o?
The value of m in the triangle
What is 2?
6+x-2x+3x-4x=3x+4
What is
x=2/5?
The number of paintings that were not bucolic if 70% were and 2,000 total paintings were exhibited
What is 6,000 paintings?
The number of spectators at a local art show if the ratio of artists to spectators was 3 to 14 and a total of 1700 were there
What is 1400 spectators?
The money in an account after 1 year if $2000 has been deposited at 4.5% interest compounded semiannually
What is $2184.05?
The final price of juicy ripe pears that Mr. Indecisive originally sold for $1.28/lb but marked down 50%, then up 50%, then down 50%, then up 50%!
What is $0.72/lb?
The perimeter of the figure, in decimeters
What is 40 dcm?