Respuesta :

Problem 1

Answer:

  1. The square root of the   expression   of the   difference   of   x^2    and 11.
  2. The   quotient   of   2   times a number and -1
  3. The   sum   of the   square root   of two times a number and 11.

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Explanation:

The term "difference" is the result of subtraction. We're subtracting the x^2 and 11. Then applying the square root to the result.

Question 2 has the blanks filled correctly.

For the last sentence, we have a sum of the terms [tex]\sqrt{2x}[/tex] and 11.

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Problem 2

Answer:

The value of an algebraic expression depends on its   variables  

  1. Substitute the known value for each variable.
  2. Simplify using the   order   of   operations  
  3. Use the work to answer any word problems related to the expression.

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Explanation:

The variables are placeholders for numbers

So for instance, saying x+5 is like saying "some unknown number plus 5".

We could replace it with something like x = 10 to get x+5 = 10+5 = 15

Once the variable is replaced, you use the order of operations PEMDAS (some books refer to it as BODMAS).

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