posted by Amelia

Evaluate the expression √−7/√ −6√−5 and write the result in the form a+bi.
I keep getting b as 0.483i but apparently its wrong?

  1. Steve

    Well, you need to work on using parentheses

    √−7/√−6√−5 means (√−7/√−6)(√−5)
    = 7i/6i * 5i
    = 35i^2/6i
    = 35/6 i = 5.83i

    √−7/(√−6√−5) = 7i/-30 = -0.233i

    0.483 = 29/60
    Too bad you didn't bother to show your work, eh?

    Or is there a typo in the problem?

  2. Amelia

    Tried that answer as well but the website is till telling me its wrong. Could be a typo will have to check with the instructor.

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Algebra

    - ok... we keep getting this one wrong: Solve the following equation for x. Write your answer as a fraction in simplest form. -6(x-5)=-2x-8-6(3x-5) What is it you don't understand about this?
  2. Math

    how do you solve this I keep trying and I keep getting the wrong answer. I keep getting x=19000 and that is not correct .10=.9(x/15000)+.14[(1-x)/15000]
  3. math 30

    I need to write 4x^2 - y^2 -8x -4y + 16 = 0 in standard form and I keep getting it wrong. Could someone please help me. Thanks
  4. Chemistry II

    Compute the equilibrium constant for Ni^2+ (aq) and Cd (s). I keep getting 1.7*10^-3 but apparently that is wrong. What am I doing incorrectly?
  5. math

    write an equation of the line containing the given point and parallel to the given line; use y=mx+b form; (5,8) x+4y=7 i keep getting this wrong. Can someone show me how to work this?
  6. Precalculus

    Evaluate log(Base4) ^3sqrt64 (The ^3 is an exponent infront of sqrt 64) I keep getting wrong answer :|
  7. Math

    Perform the indicated operations and write in standard form. Sq root of -25(3- sq root of -81) Sorry, I don't know how to do the square root symbol. I keep getting 15i-45i^2, which would be 45+15i in standard form, right?
  8. Calculus

    Determine an expression, in simplified form, for the slope of the secant PQ. Given: P(1,3) , Q(1+h, f(1+h)) , where f(x) = 3x^2 PQ=Y2-Y1/X2-X1 I keep getting wrong answer, arghhh.
  9. Algebra

    Use a calculator to evaluate the expression. Write the result in scientific notation and in decimal form. Did I do think correctly?
  10. math

    Evaluate the expression√(-6)/(√(-3) √(-4)) and write the result in the form a+bi. Please help!!!!! :(

More Similar Questions