12/07/15

Cylinder surface area
Does the surface area of a cylinder double when the height doubles?
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12/07/15

sum of two no.s is 52. If one of the numbers is 10 more than the other , find the no.s . (steps to be shown)
this is a very simple question. And i guess u guys can solve this problem like for 5 or 6 min! And yeah , hope u enjoy solving the problem!!
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12/06/15

proof this - think of a 1 digit number, and write that number down 3 times then divide the number with the sum of the 3 digits.The answer should be 37.
333/9=37 all numbers 1-9
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12/06/15

sin^2x-cos^2=sinx
 sin^2x-cos^2=sinx   please answer
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12/06/15

One year ago Liz was three times as old as her brother Jack. In two years she'll be only twice as old as Jack. How old are Liz and Jack now?
This is an age related math problem with two people looking at their current ages based on the past and future.
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12/06/15

Bill drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 10 hours. When Bill drove home, there was no traffic and
Bill drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 10 hours. When Bill drove home, there was no traffic and the trip only took 7 hours. If his... more
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12/05/15

A rectangular classroom is 4 feet wider than it is long and has an area of 480 square feet. What is the length of the classroom in feet?
I need help on my homework 
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12/05/15

Ax+By=C with (-7,7) and (-8,8)
Find an equation of the line passing through the pair of points.  (-7,7) and (-8,8)  Write equation in this form Ax+By=C  Answer is  -15x +y=112 I don't know how to solve this.  Can someone help me more
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12/05/15

finding all solutions by factoring x3+x2=20x
finding  solutions to the question 
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12/05/15

Systems of equation word problem
A Nissan Sentra get approximately 32 mpg on the highway and 18 mpg in the city. You drove 265 miles on a full tank (12 gallons) of gasoline. Approximately how many miles did you drive in the city... more
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12/05/15

Find the dimensions of a rectangle whose width is 6 miles less than its length, and whose area is 91 square miles.
Find the dimensions of a rectangle whose width is 6 miles less than its length, and whose area is 91 square miles.
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12/05/15

Computing Wind Speed
The average airspeed of a single-engine aircraft is 150 miles/hour. If the aircraft flew the same distance in 2 hours with the wind as it flew in 3 hours against the wind, what was the wind speed?... more
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12/05/15

angle C and D are supplementary angles and measure of angle C is twice angle D. find measure of angle C and D
 it is very hard can someone please help
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12/04/15

what s the probability
what is the probability  of getting either a 2 or any even number in a die roll assuming the die has 6 sides?    6 squared so 36??     Probability of getting either heads or tails in one toss?... more
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12/04/15

Find the minimum or maximum y-value for f(x) = -2x^2 + 12x + 5.
  Find the minimum or maximum y-value for f(x) = -2x^2 + 12x + 5. Tell me whether it is a minimum (MIN) or maximum (MAX), then type a comma, then tell me the value. For example, if you find a... more
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12/04/15

PROBABILITY
50 percent????     what is the probability of getting at least one tails in 2 consecutive tosses?    what is the probability of getting either a queen or any black card in a one draw? 
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12/04/15

Natural Logarithms
e9-4x = 7472 We need to express the solution in terms of natural logarithms, having both the EXACT answer and the DECIMAL APPROXIMATION.Somehow got the decimal approximation, but not the exact... more
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12/03/15

Find the measure of each angle.
Given: AB⊥BC Angle 1. angle 2, and angle 3 are in the ratio 2:6:10. Find the measure of each angle.   I don't understand how to do this problem. Can some one please explain it to me? Note: It... more
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12/03/15

Plz!!! Your quadratic function is y = 3x^2 + 12x - 5. What point is the vertex?
Type the point as (x,y), with no spaces.
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12/03/15

The average of three rocks is 26 pounds.
The heaviest is twice as heavy as the lighest. The lighest rock is two pounds less than the middle rock. How much is the lightest rockc
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12/03/15

The sum of the ages of Joseph and Erica is 57 years. 9 years ago, Joseph's age was 2 times Erica's age. How old is Joseph now?
 I need the answer for math class.
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12/03/15

What number should be added to -59 to get a sum of 2
What number should be added to -59 to get a sum of 2?
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12/03/15

how do you solve 3/x+x/10=11/2x
it is not addition but multiplyign a common factor from the numerator. the answer is 10x
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12/03/15

A gallon of green house paint is made by mixing two parts yellow to three parts blue
How many gallons of yellow paint will be needed to make 20 gallons of green paint
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12/03/15

Finding Real Roots of Polynomial Equations!
The width of a container is 5 feet less than its height. Its length is 1 foot longer than its height. The volume of the container is 216 cubic feet. How tall is the container?   A. 3ft B.... more
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