08/01/16

Word problem
one canned juice is 15% juive another is 5% juice.  How many liters of each should be mixed together to get 10L that is 7% juice? How many liters of the 15% juice should be in the mixture? 2 is... more
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08/01/16

I don't know how to explain this to my soon to be 4th grader:
There are 765 marbles in a bo.  There are twice as many blue marbles as green marbles.  There are 3 times as many red marbles as blue marbles.  How many red marbles are there in the box?
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08/01/16

Easiest way to find the minimum point?
I'm trying to figure out the easiest way to find the Minimum point of:   f(x)=2x^2+20x+12
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08/01/16

A rhombus has diagonals of lengths 6 cm and 9 cm. Calculate the sizes of it's interior vertex angles.
The diagonals of a rhombus bisect each other and cross at right angles.
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08/01/16

find the inverse of f(x)=-4+7/2 x
find the inverse of f(x)=-4+7/2 x
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08/01/16

is a square a kite?
A square is a kite: True or False?
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08/01/16

What is the maxima and minima of y = sin(to the power 3/2)x multiplied cosx
Y=Sin3/2xcosx
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08/01/16

How many workers will be needed to complete a task in 3 days, given that it takes 12 days for 5 workers to complete the same task?
First convert to an equation, to then multiply as well as turn into a proportion to solve the given problem
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07/31/16

solve the given system of equations by the equations by the substitution method; -8x - 6y = -82 and y= 4x-29
Solve x and y
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07/31/16

Find the distance between the points with polar coordinates (1,pi/6) and (3,3pi/4).
please help
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07/31/16

how many years does it take an investment of $2000 to grow to $5000 in value if the annual simple interest rate is 5%
how many years does it take an investment of $2000 to grow to $5000 in value if the annual simple interest rate is 5%
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07/30/16

half-life word problem
An unknown radioactive element decays into non-radioactive substances. In 980 days the radioactivity of a sample decreases by 52 percent.(a) What is the half-life of the element?half-life: (b) How... more
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07/30/16

Do the two smaller arcs of an arbelos add up to the largest arc of the arbelos?
For example, if I calculated the two smaller arcs to be 6 cm in length total, would that be the same as the arc above it?
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07/30/16

Geometric calculations
A safe in the shape of a cube is 2 feet on a side. The bank in which it is located stores bound stacks of cashed checks; each stack is 6 inches long, three inches wide , and three inches high. What... more
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07/30/16

Darts about radius
Richard plays darts on a circular dartboard that is madeup of two concentric circles (two circles with the sanecenter but different sizes). Getting a bulls-eye means hitting anywhere in the inner... more
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07/30/16

sec(4theta + 8 degrees) cos(6 theta + 2 degrees) = 1 find the least possible value of theta
sec is 1/cos, so when you multiply them together do they cancel out and leave a quadratic equation for theta? (4theta + 8) x (6theta +2) = 1 ?
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07/30/16

if g^-1(x) is the inverse of the function (x)= (4x^3-5)over 2, find g^-1(x)
It is a Precalculus Question. I have no clue how to solve it.
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07/30/16

How do you find the surface area of a opened top cylinder?
I am trying to find the Surface area of a cylinder with a opened top with H=4cm and R= 2cm
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07/30/16

Exxplaining Induction pt 2
What I am really looking for here is an explanation as to why this process is actually able to prove that a statement is true for all values of n. Try to make your example non-mathematical and... more
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07/30/16

the speed limit on the interstate is 45km/hours convert to meters/second
its about convert km/hours to meters/second.  I need help with that question
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07/30/16

ABCDEF is a regular hexagon . Find each angle of triangle ABE
Hello sir , im in 8th standard , and im stuck at a question , thats about a triangle in a hexagon
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07/30/16

what is the domain of (5,3) (2,-7) (1,-8) and (8,3)
I need this question answered asap.  The question is "List the values that make up the domain of these numbers"
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07/29/16

Geometric calculations
Consider an ice cube tray in which each cube is created in a tray that has 12 Wells, each with a side and depth of 2 cm , how many ice cubes can be made from a liter of water?
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07/29/16

What is Kepler's second law?
What is Kepler's second law?
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07/29/16

how do i construct a polynomial function with zeros, containing points, and a degree?
zeros: -3 (multiplicity 2), 2(multiplicity 1), 4(multiplicity 1) degree: 4 contains the point (1,96)
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