solve

  1. K

    Calculus Old Quiz Problems Help

    1. Let R be the region bounded by the graphs of y= sinx and y = 1 - sinx on (pi/6, 5pi/6) Use the washer or disk method to set up (but do not evaluate) an integral that will determine the volume of the solid obtained by revolving R about the line y=3 2. Use calculus determine volume of the...
  2. Archytas

    Solving this system of equation with two unknowns.

    Hello, I am trying to solve: a0 = 2 = a · 30 + b · 20 = a + b a1 = 6 = a · 31 + b · 21 = 3a + 2b
  3. F

    find the limits, HELP

    1.\[\lim_{x\rightarrow 1}\frac{\sqrt[3]{x^{2}}-2\sqrt[3]{x}+1}{(x-1)^{2}}\] 2.\[\lim_{x \rightarrow 1}\frac{\sqrt[3]{x}-1}{\sqrt[4]{x}-1}\] 3.\[\lim_{x \rightarrow 0}\frac{\sqrt{1+x}-\sqrt{1-x}}{x}\] thank you if u take the time to solve them, means a lot!!(Bigsmile)
  4. C

    Solve for a given the vertex

    Y = ax^2 -10x +c Vertex at (-5,20) Please show me how to find a so that I can show someone else. This is all the information I'm given.
  5. A

    Trying to solve a set problem given several sets

    Hello, I've been trying to figure out how to solve this question below: Let A, B, and C be sets in a universal set U. We are given n(U) = 82, n(A) = 46, n(B) = 41, n(C) = 42, n(A ∩ B) = 25, n(A ∩ C) = 18, n(B ∩ C) = 23, n(A ∩ B ∩ CC) = 13. Find the following values.(a) n(AC ∩ B ∩ C) (b)...
  6. C

    Equation to solve a basic problem

    Hi, Not sure if I'm at the right place but I need an equation if possible. a – c = 44 (variable) a + b + c is always 100 b is always 53% of b + c what is the formula to calculate the values of a, b & c when the 44 changes? Any help would be much appreciated. Thanks.
  7. C

    Formula required to solve a problem

    Hi, Not sure if I'm at the right place and whether this is pre or post Uni level. a – c = 44 (variable) a + b + c is always 100 b is always 53% of b + c what is the formula to calculate the values of a, b & c when the 44 changes? Any help would be much appreciated. Thanks.
  8. S

    Solve equations

    a sqrt a + b sqrt b = 183 a sqrt b + b sqrt a = 182 Pls solve Sent from my GT-I9505 using Tapatalk
  9. R

    Cancellation of terms to solve for a variable

    My teacher has this problem that I will illustrate below. I could probably solve it the long way, but he uses some unique cancellations to make it easier to digest. There are two things I do not understand about this problem: 1. How is it or why (rather) is it legal to cancel out all of the...
  10. B

    Solve for k

    P =(197.3e^(197.3kt))/(e^(197.3kt) + 1) Solve for k, assuming it is a linear function of P
  11. B

    Solve for x in an exponential equation

    I found this equation in the grade above's (year 12) textbook, and I've been trying for a day to solve it with full working out. e^(2x)-e^(x)-2=0 I'm just not sure what working out I need to do. If anybody could post the answer with full working out, it'd be much appreciated.
  12. M

    tricky magic square to solve

    I would like help solving this magic square. I can't find the pattern to it. And the symbols throw me off. The aim is to find the blank square in the bottom right corner. And sorry if this is in the wrong section, Thanks
  13. J

    Solve each system of linear equations

    Hi, Please, solve each system of linear equations: x - y + z = 6 -x + y + z = 3 -x - y - z = 0 And questions 23, 25 and 29 Thanks)
  14. Vinod

    How to solve simultaneously for matrices X and Y the equations?

    Hi, How to solve simultaneously for Matrices X and Y the equations $\begin{array}{rcl}2(X-Y)+\frac12(3X+2Y)=\begin{pmatrix}-2&5\\-3&6\\0&2\end{pmatrix}\end{array}$ $\begin{array}{rcl} 3(X+2Y)+2(2X+3Y)+\begin{pmatrix}-4&2\\5&\frac12\\0&-1\end{pmatrix}=0\end{array}$ where 0 denotes $3\times2$ zero...
  15. S

    solve the 1st order unforced differential equation

    solve the 1st order homogeneous differential equation $2t{w}'-3w=0$ WORKED ANSWER For a 1st order homogeneous ODE, have solution formula: $A\cdot e^{-\int p}$ So we are doing the following integration $e^{-\int \frac{3}{2t}}\cdot A$ $\Rightarrow \int 3\cdot \frac{1}{t}\cdot...
  16. S

    Solve the differential equation by integration

    having some difficulty with this question help me please guys Solve the differential equation by integration: y' = y Solution is y = c ex but I dont understand it?
  17. P

    could solve this matter to me?

    could solve this matter to me? https://ap.imagensbrasil.org/image/gjdTQY
  18. F

    I'm sorry, would you mind correcting my work? (and helping me solve the 3rd one?)

    I'm really sorry for bothering you, but would you mind correcting my work and help me in solving the third one? Thanks!(Bow) A line l intersects the parabola y=x^2 at two points, (a, a^2) and (b, b^2) b>a. 1. Calculate the area bordered by the line and the curve: 2. If l is perpendicular to...
  19. X

    solve eqaution

    can anybody help ? how to solve this equation ?
  20. N

    How to solve this kind of problem ?

    I have no idea how to approach this type of problem. x, y , z - prime numbers. 2^x + 3^y = 28z + 2001 Find x, y, z. Please help, any idea would be appreciated. This is a problem for year 6, btw.