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charle [14.2K]
3 years ago
12

Help mememememme please ☹️

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0

An exterior angle is formed by one side of the triangle, and a side EXTENDED outside the triangle. Two angles are like that, ∠4 and ∠2.


Angle 3 is NOT an exterior angle because it is made up of two extended sides. It does not use one of the sides of the triangle.

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The price of a shirt is marked down from $12.50 to $10,00. What is the percent decrease of the shirt?
choli [55]

Answer: 20%.

Step-by-step explanation:

Given, The price of a shirt is marked down from $12.50 to $10.00.

Previous price = $12.50

New price = $10.00

Change in price = Previous price - New price

= $12.50 - $10.00

= $2.50

Now, the percent decrease of the shirt = \dfrac{\text{Change in price}}{\text{Prevoius price}}\times100

=\dfrac{2.50}{12.50}\times100\\\\=20\%

Hence, the percent decrease of the shirt = 20%.

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3 years ago
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natka813 [3]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Help on these 2 please!!
gladu [14]
Hope this helps
7 \frac{1}{5}  - 2 \frac{3}{5}  =  \frac{36}{5}  -  \frac{13}{5}  =  \frac{23}{5}  = 4 \frac{3}{5}

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6 0
3 years ago
Given f(x) = 5x + 7,g(x) = 3x-1 find f(g(x))
kakasveta [241]

Answer:

f(g(x)) = 15x + 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

Distributive Property

<u>Algebra I</u>

  • Functions
  • Function Notation
  • Composite Functions

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

f(x) = 5x + 7

g(x) = 3x - 1

<u>Step 2: Find</u>

  1. Substitute in functions:                                                                                    f(g(x)) = 5(3x - 1) + 7
  2. [Distributive Property] Distribute 5:                                                                 f(g(x)) = 15x - 5 + 7
  3. [Addition] Combine like terms:                                                                        f(g(x)) = 15x + 2
7 0
3 years ago
How do you create similar right triangles by drawing an altitude?
matrenka [14]

Answer:

Step-by-step explanation:

You draw a line right down the middle so it makes it to equal triangle

5 0
3 years ago
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