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Paul [167]
3 years ago
11

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC = 20 and DC = 5, what is the length of BC? (Note: the fi

gure is not drawn to scale.) ​
Mathematics
1 answer:
11111nata11111 [884]3 years ago
4 0

Answer:

21.2 or 15 sqrt of 2 (PETHAGOREOM theorem)

Step-by-step explanation:

a^2+b^2=c^2

20^2+5^2=C^2

400+25=C^2

450=C^2

sqrt 450=

15 sqrt of 2 or 21.2

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Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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Equality Properties

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x - 1

f(x) = -7

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

  1. Substitute:                    -7 = 3x - 1
  2. Isolate <em>x</em> term:              -6 = 3x
  3. Isolate <em>x</em>:                       -2 = x
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3 years ago
What is the answer to 54,000×10
mr Goodwill [35]

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You have $120 in your checking account. In one month, you deposit $30, write a check for $21, withdraw $20, and deposit $45. Fin
gizmo_the_mogwai [7]

Answer:

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You start with 120.

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4 0
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Answer:

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Step-by-step explanation:

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Opening the brackets we get;

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