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Andru [333]
3 years ago
11

Identify if the following are complementary angles:

Mathematics
2 answers:
KengaRu [80]3 years ago
7 0
Alright soo complementary means the two add up to 90. So number 1 is commentary but 2 is not.
Supplementary means they add to 180. So number 3 is but 4 isn’t.
Hope this helps!
Mkey [24]3 years ago
4 0
1 is correct for complementary angles and 1 is also correct for supplementary angles. A complementary angle is when two measures of 2 different angles equal 90 same goes for supplementary angles but they have to equal 180
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Step-by-step explanation:

⇒ 28-x>7(x-4)

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Step-by-step explanation:

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3 years ago
What is the solution to the equation –3.5(x + 12) = –2x + 18?
Andrei [34K]

Answer:

x = -4.36364

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 Equation</u>

3.5(x + 12) = -2x + 18

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

  1. Distribute 3.5:                    3.5x + 42 = -2x + 18
  2. Add 2x on both sides:       5.5x + 42 = 18
  3. Isolate <em>x</em> term:                    5.5x = -24
  4. Isolate <em>x</em>:                             x = -4.36364
7 0
3 years ago
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