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gavmur [86]
3 years ago
13

What is the perimeter of abc with vertices A(-2,9) B(7,-3) and C(-2,-3) in coordinate plane

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
6 0
For the answer to the question above,
A - C = ( -2, 9) - (- 2 -3) 

<span>= ( 0, 12) </span>

<span>AC = 12 </span>

<span>B - C = (7 - 3) - ( - 2 -3) </span>

<span>= (9, 0) </span>

<span>BC = 9 </span>

<span>ABC is a right -angled triangle with AC as the hypotenuse </span>

<span>AC = sqrt( 9^2 + 12^2) </span>

<span>= sqrt(81 + 144) </span>

<span>= srqt(225) </span>

<span>= 15 </span>

<span>Perimeter = 12 + 9 + 15 </span>

<span>= 36 units </span>

<span> So the answer is 36 units
</span>I hope my answer helped you.
IRINA_888 [86]3 years ago
4 0

Answer:

36units

Step-by-step explanation:

yeah thatss right


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You would distibute first distribute

6x-10=8

add 10 on both sides

6x=18

Then you divide 6 on both sides to get x by itself so

x=3

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Solve for x round to the nearest tenth.
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Answer:

x ≈ 15.9

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² + 6² = 17²

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F(x)=3x-3<br><br>g(x) 3x^3+5<br>Find F(-3) and g(-2)
astra-53 [7]

Answer:

f(-3) = -12

g(-2) = -19

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>

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

f(x) = 3x - 3

g(x) = 3x³ + 5

f(-3) is <em>x</em> = -3 for function f(x)

g(-2) is <em>x</em> = -2 for function g(x)

<u>Step 2: Evaluate</u>

f(-3)

  1. Substitute in <em>x</em> [Function f(x)]:                                                                           f(-3) = 3(-3) - 3
  2. Multiply:                                                                                                             f(-3) = -9 - 3
  3. Subtract:                                                                                                            f(-3) = -12

g(-2)

  1. Substitute in <em>x</em> [Function g(x)]:                                                                         g(-2) = 3(-2)³ + 5
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