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damaskus [11]
3 years ago
15

Which answer is a solution to the inequality?

Mathematics
1 answer:
sergey [27]3 years ago
8 0

Answer:

B

Step-by-step explanation:

To determine which ordered pair is a solution, substitute the coordinates of the point into the left side of the inequality and if it satisfies the inequality then it is a solution.

A (- 3, 0 )

- 9 + 0 = - 9 < -8 → (- 3, 0) is not a solution

B (- 2, - 1)

- 6 - 1 = - 7 > - 8 → ( - 2, - 1) is a solution

C (0, - 10)

0 - 10 = - 10 < - 8 → (0, - 10) is not a solution

D (2, - 16)

6 - 16 = - 10 < - 8 → (2, - 16) is not a solution


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Evaluate the expression when X= -2 x^2 + 9x + 3
TiliK225 [7]

Answer:

-11

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<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x² + 9x + 3

x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                  (-2)² + 9(-2) + 3
  2. Exponents:                                                                                                        4 + 9(-2) + 3
  3. Multiply:                                                                                                             4 - 18 + 3
  4. Subtract:                                                                                                            -14 + 3
  5. Add:                                                                                                                   -11
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