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bazaltina [42]
3 years ago
8

PLEASE HELP!!!!!

Mathematics
1 answer:
Andrews [41]3 years ago
7 0

Answer:

ABCDE is a 5 sided figure called pentagon

Formula side-2 = number of triangle each triangle = 180 degrees

5-2=3 triangles X 180= 540 degrees

Question number 2

Same formula then you divide by the number of sides to determine each angle

8-2=6 triangles 180x6= 1,080 /8= 135 degrees for each angle

Step-by-step explanation:

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Andrew pays a monthly membership fee of $10 at his gym. Each time he uses the gym, he pays $5. Last month, Andrew spent a total
Ivenika [448]

Answer:

11

Step-by-step explanation:

If we input 11 into the equation, we get: 10 + 5(11) = 65.

5 x 11 = 55

55 + 10 = 65

Therefore x = 11

6 0
3 years ago
Solve 5x^2-2=-12 by taking the square root
k0ka [10]

Answer:

x = ±i√2

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

Multiplication Property of Equality

Division Property of Equality

Addition Property of Equality

Subtraction Property of Equality<u> </u>

<u>Algebra II</u>

Imaginary root <em>i</em>

  • <em>i</em> = √-1

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

5x² - 2 = -12

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

  1. [Addition Property of Equality] Add 2 on both sides:                                    5x² = -10
  2. [Division Property of Equality] Divide 5 on both sides:                                 x² = -2
  3. [Equality Property] Square root both sides:                                                    x = ±√-2
  4. Rewrite:                                                                                                             x = ±√-1 · √2
  5. Simplify:                                                                                                             x = ±i√2
7 0
3 years ago
Classify the scenarios based on whether they are observational studies, experimentsor surveys. Scenarlo A: Twenty employees of a
Alex777 [14]

Answer:

Scenario A: Survey

Scenario B: Observational Studies

Scenario C: Experiment

Scenario D: Survey

If it not the answer you can correct me

6 0
3 years ago
Richard and Jordan went to see a movie. Richard spent $mat the movie theater, and Jordan spent $12 at the movie theater. Togethe
7nadin3 [17]
X+12=26, x being the amount spent by Richard <span />
5 0
3 years ago
What are the solutions to x2 + 8x + 7 = 0?
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Answer:

x= -1 and x= -7

hope it helps.

5 0
3 years ago
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