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Marianna [84]
3 years ago
15

If g(x) = 1/2x - 5, then for what value of x is g(x) = 8? a) -1 b) 11 c) 26 d) 6

Mathematics
1 answer:
NikAS [45]3 years ago
4 0

Answer:

c) 26

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 1/2x - 5

g(x) = 8

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute:                    8 = 1/2x - 5
  2. Isolate <em>x</em> term:               13 = 1/2x
  3. Isolate <em>x</em>:                       26 = x
  4. Rewrite:                         x = 26
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Step-by-step explanation:

lim x approaches -6     (sqrt( 10-x) -4) / (x+6)

Rationalize

   (sqrt( 10-x) -4)      (sqrt( 10-x) +4)

    ------------------- * -------------------

       (x+6)                 (sqrt( 10-x) +4)

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-------------------

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-------------------

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Cancel x+6 from the numerator and denominator

-1

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