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  • M
    The first thing you need to do is read the quadratric formula correctly. Correct is \dfrac{-b \pm \sqrt{b^2-4ac}}{2a} What you are...
  • I
    irfanakademisi posted the thread QUESTION 1 in Pre-Algebra.
    QUESTION 1 Which of the following is not a factor of the algebraic expression xy (x + 3)^2 - x^2 y (x + 3) + xy (x + 3) \text{A)...
  • K
    I'm having a hard time with Problem 3. (I just went from Problem 1 to Problem 3 since I don't think it makes a difference and indexing...
    • Udemy Quadratic Formula Problems 1.jpg
    • Udemy Quadratic Formula Problems 2.jpg
    • Screenshot Udemy Excecises.png
  • K
    King Friday replied to the thread Self-learner path..
    I am 68 years old and studying high school Algebra at home with an online course on Udemy. My hope is a progress to Pre-Calc and...
  • Dr.Peterson
    Dr.Peterson replied to the thread prism.
    Here is Google's translation of the questions, which differs a little from what you said: A. Write down the dimensions of the various...
    • 1780194789161.png
  • The Highlander
    The Highlander replied to the thread Self-learner path..
    The OP mentions here that s/he is 68 years old; I expect that probably narrows down the options. 😊
  • The Highlander
    The Highlander replied to the thread prism.
    I would regard these as three distinct (different) prisms each constructed using the six rectangles in your question... but I haven't...
    • Prisms.png
  • shahar
    shahar reacted to mrtwhs's post in the thread prism with Like Like.
    Your prism (actually right rectangular prism) consists of two 3 x 4 rectangles, two 3 x 9 rectangles, and two 4 x 9 rectangles. As long...
  • M
    mrtwhs replied to the thread prism.
    Your prism (actually right rectangular prism) consists of two 3 x 4 rectangles, two 3 x 9 rectangles, and two 4 x 9 rectangles. As long...
  • shahar
    shahar posted the thread prism in Geometry and Trig.
    i need help by understanding how to answer part b(ב) of the question: There is prism. 1.a.(א) write the measures of the rectnagle that...
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  • jonah2.0
    jonah2.0 replied to the thread Self-learner path..
    Beer induced query follows. Algebra 1 & 2? Studying it as in a High School setting or as in reviewing/studying it on your own? Not too...
  • A
    apple2357 reacted to mrtwhs's post in the thread Second derivative? with Like Like.
    To be an inflection point, there must be a change in concavity. Neither the first derivative nor the second derivative has to exist at...
  • A
    apple2357 reacted to Dr.Peterson's post in the thread Second derivative? with Like Like.
    It isn't always easy to visualize the second derivative, even from a very accurate graph, much less a "sketch". Here (red) is x^(5/3)...
  • A
    apple2357 replied to the thread Second derivative?.
    Thank you. So to clarify: If a curve flattens or straightens near a point, i normally assumed the second derivative was zero there (...
  • Dr.Peterson
    Dr.Peterson replied to the thread Second derivative?.
    It isn't always easy to visualize the second derivative, even from a very accurate graph, much less a "sketch". Here (red) is x^(5/3)...
    • 1780067770193.png
    • 1780067846705.png
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