Math Homework Help

Use implicit differentiation -  2x^3 + x^2(y)-(x)y^3=2 my anwser is - y' = (-6x^2-2xy-y^3) / x^2-(x)3y^2 I think I am doing something wrong...

Posted by carrawaych May 14, 2013 at 4:56 PM via web. 1 educator answer. »

Here is a box with a length of 12 cm and a height of 8 cm and a width of 9 cm. Find the length of a line that goes from the left bottom corner...

Posted by loishy May 14, 2013 at 4:48 PM via web. 1 educator answer. »

don and dee are 5km apart and observing an island.If dee looked north toward don and turned 22.3degrees east,she would see the island.If don...

Posted by r4rob92 May 14, 2013 at 4:30 PM via web. 1 educator answer. »

If a reflection in a line k followed by a reflection in a line m maps a point A to A" and this mapping is the same as a 120 degrees rotation...

Posted by tjjavid May 14, 2013 at 2:03 PM via web. 1 educator answer. »

a) In order to decide who will play first in a certain board game, each player rolls a four-sided dice; the player with the highest score...

Posted by beans1 May 14, 2013 at 12:58 PM via web. 1 educator answer. »

Where possible, give answeres as fractions. Where a decimal is given, it must be given corrrect to four decimal places. a) for this part of...

Posted by beans1 May 14, 2013 at 12:54 PM via web. 1 educator answer. »

Data was collected on age (in years) and blood pressure (in millimeters of mercury) from a sample of people living in a particular country. A...

Posted by beans1 May 14, 2013 at 12:30 PM via web. 1 educator answer. »

Prove: `((1+1/tanx)(tan^2x - sin^2 x))/(tan^2x)=1`   Thank you

Posted by durbanville May 14, 2013 at 12:04 PM via web. 1 educator answer. »

A mother with an interest in language development records the number of words that her child can say up to the age of 36 months.She claims...

Posted by vagyika May 14, 2013 at 11:58 AM via web. 1 educator answer. »

find the number of 15- centimetre square tiles required to cover rectangular floor 5.4 m long and 4.05 m wide 

Posted by user3556486 May 14, 2013 at 11:12 AM via web. 1 educator answer. »

A motorcycler daredevil is planning a stunt to perform at a county fair.  A ramp must be built to give him a 20% grade, or slope.  If the...

Posted by mpumpkin May 14, 2013 at 10:41 AM via web. 1 educator answer. »

Customers arrive randomly at a super market at an average rate of 3.4 per minute. Assuming that the number of arrivals follows a Poisson...

Posted by roshan-rox May 14, 2013 at 8:03 AM via web. 2 educator answers. »

A train runs first 40 km at an average speed 48 km.p.h., second 80 km at an averagespeed 64 km.p.h., then due to the maintenance of the track,...

Posted by roshan-rox May 14, 2013 at 8:02 AM via web. 1 educator answer. »

A train runs first 40 km at an average speed 48 km.p.h., second 80 km at an averagespeed 64 km.p.h., then due to the maintenance of the track,...

Posted by roshan-rox May 14, 2013 at 8:01 AM via web. 1 educator answer. »

The auditorium of a theatre is shaped like a symmetrical trapezium.The rows of seats get shorter as we move farther away from a stage. In the...

Posted by marci1222 May 14, 2013 at 7:53 AM via web. 1 educator answer. »

This question says "The vertices of triangle ABC are A(-1,1), B(0,3), and C(3,4). Grapg the image of triangle ABC after a compositon of the...

Posted by t4trendesetter May 14, 2013 at 7:35 AM via web. 2 educator answers. »

A farmer has 120 feet of fencing available to enclose 2 adjacent rectangular pens alongside his barn.  No fencing is required alongside the...

Posted by kristenmariebieber May 14, 2013 at 4:59 AM via web. 1 educator answer. »

What is the median of the following 10 numbers 1,0,0,0,0,0,8,1,1,2?

Posted by airey May 14, 2013 at 4:32 AM via web. 1 educator answer. »

linearize f(x)=6x^2-5x+6 near a. x0=8 b.x0=3 a. y= b. y=

Posted by rmunoz90 May 14, 2013 at 4:05 AM via web. 2 educator answers. »

A cube is measured and each side is found to be 14 inches with a possible error of at most 0.002 inches. Determine the approximate error(...

Posted by rmunoz90 May 14, 2013 at 4:01 AM via web. 1 educator answer. »

If y= f(x)=4x^3+5 find a) dy= b) `Delta` y=

Posted by rmunoz90 May 14, 2013 at 3:59 AM via web. 2 educator answers. »

Determine the equation of the  tangent to the  `y=11e^(5x^2)-2x ` at x=3 in the form y= mx+b and has m= b=

Posted by barce90 May 14, 2013 at 3:45 AM via web. 1 educator answer. »

randy long has a whole life insurance policy that has an annual premium of $1060.She wants to pay the premium quarterly .The quarterly premium...

Posted by killblondes May 14, 2013 at 3:42 AM via web. 1 educator answer. »

Determine the equation of the line tangent to the graph of y=15e^5x/x at x=1 in the form y=mx+b has m= b=

Posted by elpony May 14, 2013 at 3:42 AM via web. 1 educator answer. »

Solve the quadratic equation by completing the square.  3x^2 + 12x + 39 = 0

Posted by kristenmariebieber May 14, 2013 at 3:36 AM via web. 1 educator answer. »

Simplify the expression: (2^-1 + 2^-3)(8^1/3)

Posted by rosey-girl May 14, 2013 at 2:46 AM via web. 2 educator answers. »

How can I solve this trigonometric equation? Sin(x)+ `sqrt(3) Cos (x)=0` Please help me I need process `` ` `

Posted by princess90000 May 14, 2013 at 2:01 AM via web. 2 educator answers. »

Solve the quadratic equation: (1/2x + 3)^2 + 6 = 19 Give your answer in the simplest form.  Enter the two solution separated by a comma. 

Posted by kristenmariebieber May 14, 2013 at 1:20 AM via web. 1 educator answer. »

A microhpone is palced at the focus of the parabolic reflector to collect sounds for the television broadcast of the World Cup Soccer final...

Posted by andrewmezzo May 14, 2013 at 12:32 AM via web. 1 educator answer. »

A parabolic headlight is formed by revolving the parabola y^2 = 15x between the lines y = -3 and y = 3 about its line of symmetry. Where...

Posted by andrewmezzo May 14, 2013 at 12:31 AM via web. 1 educator answer. »

With conic hyperbolas where I am asked to write the standard form of the equation with the orgin as the center, how can i figure out whether...

Posted by jasminehems May 14, 2013 at 12:13 AM via web. 1 educator answer. »

Graph each function; identify the domain and range for y= 1/x+3 +3 and compare the graph with the graph of y=1/x  

Posted by ryan133 May 13, 2013 at 10:58 PM via web. 1 educator answer. »

-10<-2+8x<22           solve the compound inequality

Posted by tdt3 May 13, 2013 at 10:28 PM via web. 1 educator answer. »

Graph the function y=-2x+6 with the domain-1<x<5  I believe you have to make an x/y table to get the points on the graph 

Posted by lflint29 May 13, 2013 at 7:05 PM via web. 1 educator answer. »

the tram in hong kong connects two terminals one at the base of the mountain and the other at the summit.the angle of elevation of upper...

Posted by r4rob92 May 13, 2013 at 5:29 PM via web. 1 educator answer. »

joe and dee are observing an island 5km apart.if joe looked north toward deeand turned 22.3degrees to the east she would see the island .if...

Posted by r4rob92 May 13, 2013 at 5:25 PM via web. 1 educator answer. »

two cars start moving from same location.head straight.but different directions. The angle between where they are heading is 43degrees.The...

Posted by r4rob92 May 13, 2013 at 5:18 PM via web. 3 educator answers. »

i) What is the domain of the function f(x) = arccos (|x-1|)? ii) Simplify the function sin(arcsin(x))

Posted by yoory08 May 13, 2013 at 4:02 PM via web. 1 educator answer. »

Stan's Equipment charges $22 plus $4 per hour to rent a lawnmower. Lawns-n-More charges $10 plus $10 per hour. The system of linear equations...

Posted by morelove May 13, 2013 at 3:38 PM via web. 1 educator answer. »

Factorise the expression  `x-1 - (x-1)^2`  

Posted by pkgslg May 13, 2013 at 3:15 PM via web. 2 educator answers. »

Find the equation in slope-intercept form of the line that is the perpendicular bisector of the segment between (-3,4) and (3,-8).

Posted by loishy May 13, 2013 at 3:12 PM via web. 1 educator answer. »

Two buildings stand 90ft apart at their closest points. At those points the angle of depression from the taller bldg to the shorter bldg is 12...

Posted by r4rob92 May 13, 2013 at 2:50 PM via web. 1 educator answer. »

A mother with an interest in language development records the number of words that her child can say up to the age of 36 months . She claims...

Posted by vagyika May 13, 2013 at 12:11 PM via web. 3 educator answers. »

How do I answer this question?Use the coordinate rules to rotate triangle ABC 90 degrees counterclockwise around the origin. List the...

Posted by it-sall-in-the-brain May 13, 2013 at 11:31 AM via web. 1 educator answer. »

A researcher claims that the average 6 year old has a vocabulary of around 5000 words, and subsequently acquires 3000 words per year until...

Posted by vagyika May 13, 2013 at 11:05 AM via web. 2 educator answers. »

A researcher claims that the average 6 year old has a vocabulary of around 5000 words, and subseqently acquires 3000 words per year until they...

Posted by vagyika May 13, 2013 at 10:50 AM via web. 2 educator answers. »

If logba = 0.82, then the value of logb(b/a), correct to the nearest hundredth, is

Posted by alejandrogalarce May 13, 2013 at 9:30 AM via web. 1 educator answer. »

A, B and C can finish a piece of work in 20,30 and 40  days respectively. They started the work together and...

Posted by roshanbht May 13, 2013 at 8:11 AM via web. 1 educator answer. »

Shade the region R in the xy-plane, containing the points which satisfy the inequalitiesx + y ≥ 0 , y − x ≤ 4 and x^2 + y^2 ≤ 16 .

Posted by roshan-rox May 13, 2013 at 7:41 AM via web. 1 educator answer. »

The mean and the variance of five observations 6, 4, 8, a and b are 6 and 2 respectively.Find the values of a and b.

Posted by roshan-rox May 13, 2013 at 7:40 AM via web. 1 educator answer. »