05/15/14

solve and graph
I submitted the following but people were not reading the negative sign before the -9, so here it is 6-(-9f)<-3. I don't know if I make the -9f positive since there is a negative sign in front... more
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05/14/14

Suppose a certain cylinder has a volume of 6433.98...
Suppose a certain cylinder has a volume of 6433.98175 cm3.Questions:What are 5 different combinations of radius and height that will lead to this volume?What are the surface areas of these... more
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05/14/14

what is the area for a yard 40ft by 20ft 6inches deep (trying to get mulch) they charge by the cubic yard..1 cubic yard covers 120 square feet..how many yards
Getting mulch and needing to know how much to get, they charge by the cubic yard
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05/14/14

an initial bank deposit of $45, every year increase the deposit by $23. What is the principal after 6 years
Interest is not to be considered
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05/14/14

6--9f<-3 solve
Solve for 6--9f<-3. It always confuses me what I should do first.
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05/14/14

How do I find the speed in miles per hour when the stopping distance is 300 feet and the function is f(x)=.125x^2+2.3x+26.875
We are working with quadratic regressions.  I found the function, but I can't figure out the speed when the stopping distance is 300 feet.  I believe the answer is 38.5, or when rounded 39 mph.
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05/13/14

What number am I???
I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is 1 more than my hundreds digit. What... more
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05/13/14

Find the indicated power using De Moivre's Theorem. (Express your fully simplified answer in the form a + bi. ) (1 - i )2
Find the indicated power using De Moivre's Theorem. (Express your fully simplified answer in the form a + bi. ) (1 − i )2
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05/13/14

Select the approximate values of x that are solutions to f(x)=0,where f(x)=-2x^2+6x+5.
select the approximate values for x  that are solutions to f(x)=0,where f(x)=-2x^2+6x+5.
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05/13/14

I need help solving and showing all my work for a couple problems, can anyone help?
1. A building that is 25 meters tall casts a shadow 25√3 meters long. What's the angle of elevation of the sun?   2. What is the angle in degrees between the minute hand and the hour hand of a... more
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05/12/14

Two step equation
18-4x=-2 What does x =
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05/12/14

2/x+5 - 1/x-5
Subtract rational expressions  
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05/12/14

solve by completing the square. y square 2+8y+41=0
solve by completing the square y∧2+8y+41=0
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05/12/14

what is 12x^4+10x^3-12x^2 factored
12x4+10x3-12x2
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05/12/14

Complex fractions
1+ 4/x + 4/x squared divided by 1- 2/x - 8/x squared
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05/11/14

can someone help me find the derivative for this function?
y=log(sin^5(x))
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05/11/14

A new grocery store is expected to have a fair market value of $2,856,000. It will be assessed at 40%, and the tax rate is $5.24 per $100 of assessed value. Fin
business math need help with it
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05/11/14

Owen owns a store with a fair market value of $1,429,000. Property in the area is assessed at 45% of market value. Find the assessed value of the property.
business math question need help
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05/11/14

12x-6/14x-7
simplify 12x-6/14x-7
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05/11/14

A pendulum 20 cm long swings 3 degrees 30 minutes on each side of it's vertical position. Find the length of the arc formed by the tip of the pendulum.
I seriously need help understanding the concept 
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05/11/14

linear equation of a line that passes through (3,4) has slope of -4/3
Need linear equation of a line that passes through (3,4)has slope of -4/3
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05/10/14

If you are 34 feet above the ground how far can you see assuming the radius of the earth is 4000 miles
If you are 34 feet above the ground how far can you see assuming the earths radius is 4000 miles
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05/10/14

derivation of sin(3x)/(1+x^2)
sin3x/(1+x^2)
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05/10/14

{4y+2x =4, 3y -3x = -6} solve by substatution and check answer
I have done this problem several times. and can not seem to get the correct work and check.
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05/10/14

Grade problem
The percentage score on a test varies directly as the number of correct responses. Ted answered 44 questions correctly and earned a score of 55%. What would Ted’s percentage score have been if he... more
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