2r^2+1/r (2r^2+1 is all divided by r)

I have absolutely no idea how to do thsese kinds of problems and my teacher confuses me even more. Thanks for helping .

2 Answers | 0 Votes | Jamie from Knoxville, TN 4/16/2013

y=x+2 in coordinate plane

1 Answer | 0 Votes | Tina from Kenner, LA 4/16/2013

y=-x in coordinate plane

1 Answer | 0 Votes | Tina from Kenner, LA 4/16/2013

True or False? The integral from 0 to 2pi?

True or False? The integral from 0 to 2pi, from 0 to 4, from r to 4 dz dr dtheta represents the volume enclosed by the cone z=sqrt(x^2+y^2) and the plane z=4.

2 Answers | 0 Votes | Sun from Los Angeles, CA 4/14/2013

If f(x, y, z)=sin(3x-yz), where x=e^(t-1),?

If f(x, y, z)=sin(3x-yz), where x=e^(t-1), y=t^3, z=t-2, what's df/dt(1)?

1 Answer | 0 Votes | Sun from Los Angeles, CA 4/15/2013

It states to find the length of a side of a cube (rounding the answer to three decimal places) showing the steps of the problem; if the volume is

a) 800 cm3 b) 500 cm3 How do you get to the answer of the length of 800 cm 3 and 500 cm3 showing the step by step process

2 Answers | 0 Votes | Char from Grand Rapids, MI 4/12/2013

please help solve these

find the zeros of the function by using the zero product property for the following: 4x^2-20x=0 3x^2+30x=0 -3x^2-15x+42=0 x^2-5x-14=0 9x^2-16=0 9x^2+66x-121=0 14x^2=55x-21 25x^2-81=0 x^2-32=-14x -7x^2=34x-5 x^2-11x+18=0 14x^2-57x-27=0 25x^2-144=0 64x^2-48x+9=0 5x^2=-23x+42 x^2=6x=-55 solve...

2 Answers | 0 Votes | Sydney from Rutherford, NJ 4/14/2013

Solve the equation

Solve the equation. 3/y2-10y+24 - 1/y2-16 = 6/y2-2y-24

1 Answer | 0 Votes | Kayla from Santee, CA 4/15/2013

Isabel wants a coat that costs $60. She saved $42. What fraction of the amount she needs has she saved?

I need help on how to resolve this i got pretty much similar questions.

1 Answer | 0 Votes | Jakeline from Santa Fe, NM 4/15/2013

solve for x

how do i salove this problems x/(x-3) -(x+3)/x =1/x solve for x.

1 Answer | 0 Votes | Betty from Everett, WA 4/15/2013

i have a garden that measures 40x50 feet. i want to add a tile walkway around it. how wide can it be if i have 784 square feet of stones?

i need to know the width of the walkway around the garden

1 Answer | 0 Votes | Mitch from Orem, UT 4/14/2013

getting frustrated with this problem have been working on it for two days and can't figure it out

w = 33 - (10.45 + 10√V - V) (33 - T over 22 and W is wind chill temperature (temperature with no wind) and T is actual temperature in Celcius, V is wind speeds in m/sec a) T = 10 degrees Celcius a)...

1 Answer | 0 Votes | Char from Grand Rapids, MI 4/13/2013

Write an equation of the line tht passes through the given point and is perpendicular to the graph of the given equation?

Write an equation of the line that passes through the given point and is perpendicular to the graph of the given equation? 1. (-9, 3); 3x + y = 5 2. (-8, 3); y +4 = -2/3(x-2) 3. (3, -6);...

2 Answers | 0 Votes | Starce from Jacksonville, FL 4/2/2013