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3 years ago

PLEASE HELP ASAP PYTHAGOREAN THEOREM

Mathematics

2 answers:

kramer3 years ago

7 0

11.66 or 12

Step-by-step explanation:

c^2 = a^2 + b^2

19^2 = 15^2 + b^2

361 = 225 + b^2

361 - 225 = b^2

136 = b^2

(square root of both sides)

b = 11.66or 12

Usimov [2.4K]3 years ago

4 0

B=11.661

15^2 + B^2= 19^2
225 + B^2 = 361
B^2 = 136 (subtract 225 from both sides)
136= 11.661 (square root)
B= 11.661

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2 years ago

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Can someone please help me with this problem?

GenaCL600 [577]

You need to know and have memorized metric unit conversions. They are easy, you just need to know how many zeros to add.

1 cm = 10 mm
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3 years ago

8x - (2x - 13) = 42 solve and check the equation

pantera1 [17]

Answer:

x = 29/6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

8x - (2x - 13) = 42

Step 2: Solve for x

[Distributive Property] Distribute negative: 8x - 2x + 13 = 42
[Subtraction] Combine like terms: 6x + 13 = 42
[Subtraction Property of Equality] Subtract 13 on both sides: 6x = 29
[Division Property of Equality] Divide 6 on both sides: x = 29/6

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: 8(29/6) - [2(29/6) - 13] = 42
Multiply: 116/3 - [29/3 - 13] = 42
[Brackets] Subtract: 116/3 - -10/3 = 42
Subtract: 42 = 42

Here we see 42 does indeed equal 42.

∴ x = 29/6 is the solution.

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tiny-mole [99]

1 solution

Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out

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