math

I don't understand how I am supposed to solve if i have something like (-7) to the power of -2... or 3/4 to the power of -1

  1. 👍
  2. 👎
  3. 👁
  1. -7^ (-2), put it divided by 1.
    -1/(7^2) when you place the exponent to the denominator, change the sign, same goes if you have a negative exponent on the denominator, bring it to the numerator and change the sign.
    -1/49

    1. 👍
    2. 👎
  2. (3/4)^(-1). Just switch the fraction to
    4/3 , because its the whole fraction raised to -1.

    if ( 3^(-1) ) / 4 ==> 1/(3*4)=1/12

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra 2

    . Is there any bias in the survey question? Explain. What do think would help students pay more attention in class? i don't understand what i am supposed to answer to this

  2. chemistry

    how many "particles in solution" will form from each sucrose (C12H22O11) molecule added to water? Explain. I don't understand where I am supposed to start... What do I need to know to do this problem? thank you

  3. English poem

    canadian january night by alden nowlan ice storm; the hill a pyramid of black crystal down with the cars slide like phosphorescent beetles while I, walking backwards in obedience to the wind, am possessed of the fearful knowledge

  4. chem:ionic equations

    write below the complete ionic equation for the reaction of magnesium phosphate with lead(II)nitrate. Include which ions will be aqueous and which compound will precipitate. I understand how to balance the equation, but the

  1. physics

    two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think the answr is zero.. but i don't

  2. Math (Grade 12)

    I need help with this problem (composite functions): If f(x) = 4x-3 and h(x )= 4x^2-21, find a function g such that f(g(x)) = h. I don't understand how we're supposed to combine the functions. Oh, and the answer is supposed to be

  3. GENERAL CHEMISTRY

    CALCULATE THE pH AND HYDROLYSIS IN 0.10 M AlCl3 SOLUTION.Ka = 1.2 X 10-5 FOR [Al(OH2)6]+3,OFTEN ABBREVIATED Al+3.TELL WHETHER pH IS ACID OR BASE.GIVE IONIC EQUATION. Help us a little by telling us how much you know to do and

  4. Math

    M is the set of integers that are greater than -1 and less than 4 I don't understand?? i know it's easy but i don't understand how to solve it

  1. Chemistry

    A sample of an ideal gas in a closed container (3.00 L) at 25.0 degrees C is heated to 300 degrees C. What is the pressure of the gas at this temperature? Do I use P1/T1=P2/T2? I was told to use that, but I don't know what

  2. why is noone answering my question?!?!

    A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical asymptotes x=3, x=-3. I understand that to set it up, it is y= ax+b / (x+3)(x-3). I don't understand how

  3. Physical education

    I know it might be a bit much to ask but does anyone know how to do the ‘heart rate portfolio’ for connexus 1.2.8-portfolio item: heart rate I think I was supposed to do exercises but I was very busy with my other classes I

  4. Substitution Method-Plz help

    Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=-4 (y+2) + y = -4 solve for y. Then, x= y+2 i don't get

You can view more similar questions or ask a new question.