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Gre4nikov [31]
3 years ago
10

When answered please show step by step

Mathematics
1 answer:
Allushta [10]3 years ago
3 0
How am I supposed to answer that if I can't get the graph to you?
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Tell whether the angles are complementary or supplementary. Then find the value of x.
juin [17]

Answer:

The angles are supplementary. X = 31

Step-by-step explanation:

The angles sum to equal 180 degrees, menaing they are supplementary. Add the degrees of each side 3x + 25 + 2x = 180 and solve for x. X should equal 31.

6 0
3 years ago
What is the answer to 9a-3(2a-4)=15
Alecsey [184]

Answer:

a=1

Step-by-step explanation:

The answer to this problem is 1. This is the answer because  using PEMDAS, you would first have to distribute -3.

So: 9a+ -6a+12=15

Combine like terms:

3a+12=15

Subtract 12 on each side. 3a= 3

Divide 3 on each side.

a=1

Hope this helps!! :D

4 0
3 years ago
Read 2 more answers
Use special right triangles to solve for the exact value of x.<br><br><br> 4<br><br> 9<br><br> 16
Gelneren [198K]

Answer: A basic theorem for finding the third length of a right angle triangle is the Pythagoras Theorem.

In a right angle triangle, the slant and usually longest side is called the Hypotenuse while the other two sides are Opposite and Adjacent.

The Pythagoras Theorem States:

hypotenuse^{2} = opposite ^{2} + adjacent ^{2}

Step-by-step explanation:

If for example, we are given the other two sides as 3 and 4 respectively,

Using

Hyp^2=Opp^2+Adj^2

Hyp^2 =3^2+4^2=25

Hypotenuse = \sqrt{25}=5

These set of numbers (3,4,5) in this  that satisfies the theorem are called Pythagorean Triples

7 0
4 years ago
Is my answer correct?
scZoUnD [109]

Answer:

yes $56 is correct

Step-by-step explanation:

The 3 part of the ratio relates to $42 , then

$42 ÷ 3 = $14 ← value of 1 part of the ratio , then

4 parts = 4 × $14 = $56

5 0
3 years ago
A triangle has side lengths of (6a-3b)(6a−3b) centimeters, (5a+5c)(5a+5c) centimeters, and (8c-b)(8c−b) centimeters. Which expre
lilavasa [31]

Answer:

P = a(61a - 36b + 50c) + 10b² + 89c² - 16bc

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>

  • Terms/Coefficients
  • Expand by FOIL (First Outside Inside Last)
  • Factoring

<u>Geometry</u>

Perimeter Formula [Triangle]: P = L₁ + L₂ + L₃

  • L₁ is one side
  • L₂ is another side
  • L₃ is the 3rd side

Step-by-step explanation:

<u>Step 1: Define</u>

L₁ = (6a - 3b)(6a - 3b)

L₂ = (5a + 5c)(5a + 5c)

L₃ = (8c - b)(8c - b)

<u>Step 2: Find Perimeter</u>

  1. Substitute in variables [Perimeter - Triangle]:                                              P = (6a - 3b)² + (5a + 5c)² + (8c - b)²
  2. Expand [FOIL]:                                                                                                P = (36a² - 36ab + 9b²) + (25a² + 50ac + 25c²) + (b² - 16bc + 64c²)
  3. Combine like terms (a²):                                                                                 P = 61a² - 36ab + 9b² + 50ac + 25c² + b² - 16bc + 64c²
  4. Combine like terms (b²):                                                                                P = 61a² + 10b² - 36ab + 50ac + 25c² - 16bc + 64c²
  5. Combine like terms (c²):                                                                                P = 61a² + 10b² + 89c² - 36ab + 50ac - 16bc
  6. Rearrange variables:                                                                                      P = 61a² - 36ab + 50ac + 10b² + 89c² - 16bc
  7. Factor:                                                                                                             P = a(61a - 36b + 50c) + 10b² + 89c² - 16bc
7 0
3 years ago
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