Mathematics

Help needed solving this system of equations

Ive tried solving this equation, but keep ending up with no solution. Can any of you try to figure this one out and explain to me how you solved it? Thanks in advance. x^2-xy+3y^2=5 x-y=2 Solve the

Chemisty equation problem 3

A solution is made by dissolving 5.00g of HCl in enough distilled water to give a final volume of 500.0 ml. Calculate the Molarity of the solution.-M = mol / liters 500.0 mL = .5000 L 5.00g HCl (1 mo

Prove that (2cosec-1)/(tanx-2secx)=-cotx will give ten points for answers with workings. please help

(2cscx - 1)/(tanx - 2secx) (2/sinx - 1) / (sinx/cosx - 2/cosx) [(2 - sinx) / sin x] / [(sin x - 2) / cos x)] [(2 - sin x) / sin x] * [(cos x) / (sin x- 2)] -1 * cosx / sin x -cosx/sinx -cotx Do I win

Probability question please help thanks

A game is played with a fair six-sided die. A player throws this die and if the result is 2,3,4 or 5, that result is the players score. If the result is 1 or 6, the player throws the die a second time

Math 10 trigonnometry

sharon is flying a kite on a string 130m long. determine the height of the kite if the string is at an angle of 34° to the ground. [the angle is xx° to the ground... so my question is... which angle i

Math Help? Algebra. Best answer tonight!

Hi! This is my summer packet for math class, and Im on the last page. I cant figure it out. Its for next years Algebra II class. Suppose you, your uncle, and your little brother are purchasing passes

Maths Ratio Question

The Ratio of williams age to lauras age is 3:2. william is 18 years old. how old is laura? My answer was 12 because 18 divided by 3 is 6 so 6 times 2=12 is this correct? if not could you plz tell me t

Limit as x approaches infinity 4^x-(18x^2?)

I can tell whether it would be +oo or 0.-Qualitatively 4^x increases faster than x^2.So the limit of their difference as x--> oo is oo. This shows how to work it out.... Use the Squeeze Theorem.

Find the angle between 2 planes

Plane 1: x+y+2z=1 Plane 2: r=(1,-2,2) + lambda(2,1,0) + alpha(0,1,-3) with lambda and alpha both real numbers-Plane 2 is x = 1 + 2L y = -2 + L + A z = 2 - 3A where I use L and A for lambda and alp

How do you solve 27a^3+b^3

Factor completely 27a^3+b^3-This is the sum of cubes factorization: x^3 + y^3 = (x+y)(x^2 - xy + y^2) In this case, x = 3a and y = b, so the answer is: (3a + b)(9a^2 - 3ab + b^2)-There is no common f

Calculus II homework help needed!!

By recognizing the series ((3/4))+((3/4)^2)/2+((3/4)^3)/3+.....+… as a Taylor series evaluated at a particular value of x, find the sum of the convergent series. sum = ?? Originally I was thinking

I have some difficult algebra problems

1.) 4/(p-3) - 2/p = 0 2.) Find the equation of the line that goes through points (3, -3) and (-3, 3). 3.) b + 2/m + y/zm^2-1.) 4/(p-3) - 2/p = 0 So you know that 4/(p-3) is equal to 2/p 4/(p-3) =

Use calculus to Find work required to pump all the water out

A water tank is in the form of a right circular cylinder with height 20 ft and radius 6 ft. If the tank is half full of water, find the work required to pump all of the water over the rim.( water weig

Simplify a^2b^3(xy-pq)^4(c+d)/a^3bc(xy-pq)^3

And an explaination if possible. pleaaaase!-a^2b^3(xy-pq)^4(c+d)/a^3bc(xy-pq)^3 a^2b^3(xy-pq)(c+d)/a^3bc a^2b^2(xy-pq)(c+d)/a^3c b^2(xy-pq)(c+d)/ac

A pie with circular cross sections

A PIE WITH CIRCULAR CROSS SECTIONS IS 24 CM ACROSS THE TOP , 16 CM ACROSS THE BOTTOM, AND 6 CM DEEP. FIND THE VOLUME OF THIS DISH? Solve using integrals Can some one please help me with this question