math (please double check my answers)

4. Prove: 2^n + 2^n = 2^n+1

asked by christina
  1. correct, if you write it as
    2^(n+1)

    posted by Reiny
  2. x 2 - 4 for x = 5

    posted by sarah

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Math

    Can someone please check my answers below for accurateness? The instructions are: Differentiate and simplify. 1) y=(2x^2+3x-1)(3x^2-5x-3) y'=(4x+3)(3x^2-5x-3)+(2x^2+3x-1)(6x-5) 2) y=(5x^2+3x-1)(3x^2-5x-3)
  2. Honors Chemistry (check answers)

    On a worksheet we got, we have to balance out chemical reaction equations then define what kind of reaction it is (synthesis, decomposition, single/double-replacement). Would someone be willing to check my answers, please?
  3. math (please double check my answers)

    Simplify the following using the laws of exponents: Need help with these: a) (9)^1/2 x 4^2/24 b) 16 x 2^x+2 Simplify each of the following: b) b) 3 sqrt x^1/4 sqrt x/ 5 sqrt x^2 c) (ab)^2x+y /a^x b^y Need these answers double
  4. Math check answers please

    Sorry to bug again but can someone check my answers please thank you. 1. Simplify the expression 3w-10w A. 13w B. -7w C. -7 D. 7w 2. Y+2y+3z A. 2y+3z B. 3y+3z C. 2y^2+3z D. 6yz 3. 6r+r-5r A. 2r B. 1r+r C. 0r D. 7r-5r 4. 5x+2(x+6)
  5. Calculus - please check my work

    Differentiate each function a) y = -3x^2 + 5x - 4 b) f(x) = 6/x - 3/(x^2) c) f(x) = (3x^2 - 4x)(x^3 + 1) the answers i got for each was: a) y'= -6x + 5 b) f'(x)= -6/x^2 + 6/x^3 c) f'(x)= 15x^4 + 6x - 16x^3 - 4 please double check
  6. Java Programming

    Hi! ____ 6. Which of the following shows a valid header for a method that accepts any number of double values and returns an array of double values? (1 point) a) public static double... convert(double... d) b) public static
  7. Math

    Tim is a first grader and reads 28 words per minute. Assuming he maintains the same rate, using the double number line to find out how many words he can read in 5 minutes. Words 0 28 --- --- ---- ---- Minutes 0 1 5 This is
  8. math

    My math teacher wants us to prove that all of our answers are correct. But how am I supposed to be able to prove stuff, like this, for example. The directions want you to write out the words in to an equation. Seven is the sum of
  9. Math HELP

    I have my answers at the bottom but please do these questions so I can check my answers. Check my answers as well. Subtract these fractions. !Reduce them! 1. 5/7 - 3/10= 2. 11/18 - 5/12= 3. 1/3 - 1/6= 4. 7/12 - 1/16= 5. 7/8 -
  10. check math

    Here are my answers. Can you check if I got the right answers? Thank you! (x-4)/(x^2-3x-4) = x+1 (x^3-8)/(x-2)=x^2+2x+4 (5-x)/(x^2-25)=-x-5 (x^2-4x-32)/(x^2-16)=(x-8)/(x-4) first one should be 1/(x+1) second is good third:

More Similar Questions