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KATRIN_1 [288]
3 years ago
7

6r = 3(r - 4) - r need help asap!

Mathematics
2 answers:
Vilka [71]3 years ago
8 0
The answer for 6r = 3(r - 4) - r is R= -3
Gelneren [198K]3 years ago
6 0

Answer:

6 = 3( + -4) + -1

:

6 = 3(-4 + ) + -1

6 = (-4 * 3 + * 3) + -1

6 = (-12 + 3) + -1

: 3 + -1 = 2

6 = -12 + 2

6 = -12 + 2

''.

, .

'-2' .

6 + -2 = -12 + 2 + -2

: 6 + -2 = 4

4 = -12 + 2 + -2

: 2 + -2 = 0

4 = -12 + 0

4 = -12

'4'.

= -3

= -3

Step-by-step explanation:

' ....

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Find the missing side length of the triangle 10m 7.5m
xxTIMURxx [149]

Answer:

c = 12.5

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>Trigonometry</u>

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

  • a is a leg
  • b is another leg
  • c is the hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Identify</u>

Leg <em>a</em> = 7.5

Leg <em>b</em> = 10

Hypotenuse <em>c</em> = <em>c</em>

<em />

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

  1. Substitute in variables [Pythagorean Theorem]:                                              7.5² + 10² = c²
  2. Rewrite:                                                                                                             c² = 7.5² + 10²
  3. Evaluate exponents:                                                                                         c² = 56.25 + 100
  4. Add:                                                                                                                   c² = 156.25
  5. [Equality Property] Square root both sides:                                                    c = 12.5
5 0
3 years ago
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