What is the side length of a square with an area of 144x²?
C.±12x solution

I think it is C...?

  1. 👍 3
  2. 👎 1
  3. 👁 2,477
  1. I would also go with C because:

    (-12x)(-12x) = 144x^2
    (12x)(12x) = 144x^2

    1. 👍 1
    2. 👎 0
  2. Thank you...

    1. 👍 0
    2. 👎 0
  3. It was wrong - it was B...thanks anyhow

    1. 👍 5
    2. 👎 1
  4. You've got me stumped on this one too. I hope you understand why it's option B because I have no idea.

    1. 👍 1
    2. 👎 0
  5. The square root of 144x is 12x

    1. 👍 3
    2. 👎 1
  6. You are WRONG.

    1. 👍 0
    2. 👎 2
  7. Cassie,
    It is C unless the domain of x is restricted to positive values. In that case it is B.
    The computer or teacher is incorrect based on the information shown here. Why? Well if x =-1, Choice B gives us side= 12*(-1) which is -12. A square cannot have a length of -12. Therefore we’d use -12x for negative values of x.
    So it’s not a properly worded question which has led to all the confusion.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra 1

    1) what is the simplified form of (x-2)(2x+3)? Use the distributive property. A) 2x^2-x-6 B) 2x^2-6 C)2x^2-7x-6 D) 2x^2 +x-6**** 2) what is the simplified form of (3x+2)(4x-3) use a table. A)12x^2+18x+6 B) 12x^2+x-6 C)

  2. Algebra 1

    A square painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. What is the total area of the frame? A)-12x+36 B)12x-36 C)x^2+12x+36 D)x^2-12x-36 Is it C or D?

  3. Math

    1. What is the solution of n^-49=0 A. -7 B. 7 C. += 7*** Sorry I couldn't find this symbol D. no solution 2. What is the solution of x^2+64=0? A. -5 B. 8 C. += 8 D. no solution*** 3.What is the side length of a square with an area

  4. Math

    you can draw a square inside another square by placing each vertex of the inner square on one side of the outer square. The large square in this diagram has side length 10 units a) Determine the area of the inscribed square as a

  1. Math--Volume and Surface Area

    The volume of a cube is 125 cubic inches. Find the surface area. I know that the volume formula is V=Bh where v=volume, B=area of the base, and h=height. How do I get the surface area though? Also, The surface area of a cube is

  2. Algebra. Please check my answers

    Evaluate a/b+c^d for a=6,b=3,c=4 and d=5 A.42*** B.18 C.82 D.360 What is the simplified form of the expression ? -(12x-8y) A.12x+8y B.12x-8y***** C.-12x+8y D.-12x-8y

  3. Calculus!! HELP!!

    1) The sides of the triangle shown increase in such a way that (dz/dt=1) and (dx/dt=(3dy/dx)) At the instant when x = 12 and y = 5, what is the value of dx/dt? 2) Let f(x) = x^3 − 4. Which of these is the equation for the normal

  4. math

    The area of a square garden is represented by the quadratic expression 9x^2 - 12x + 4. The length of one side of the square garden is 91 inches. What is the value of x ? Hint: Since the garden is in the shape of a square, the

  1. pre cal

    What is the center of the conic whose equation is x^2 + 2y^2 - 6x + 8y = 0 2.Which one of the following equations represents a hyperbola? (5 points) A) 3x^2 + y^2 + 12x - 7 = 0 B) 3x^2 + 3y^2 + 12x - 7 = 0 C) 3x^2 + y + 12x - 7 =

  2. algebra

    -(12x-8y) i am a little confused by this. would the negative make 12x into -12x, and then -8y becomes +8y instead? would it be -12x+8y

  3. Algebra

    The area of a rectangular floor is represented by 9x^2+15x square feet and the width of the floor is 3x feet. Which expression represents the length of the floor? a. 8x ft b(3x+5) ft c(3+5x) ft d(9x^2+12x)ft I don't know how to

  4. Algebra

    To solve 9x^2-12x+4=49 by using the Square Root Property, you would first rewrite the equation was as A. 9x^2-12x-45=0 B.(3x-2)^2=+/-49 C.(3x-2)^2=7 D.(3x^2)^2=49

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