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3 years ago

What is the simplified form of the following expression? 13[62 ÷ (52 – 42) + 9]

2 answers:

5 0

Depending on what your for I could be wrong or right but here’s what I got.

Exact form: 988/5
Decimal form: 197.6
Mixed number form: 197 3/5

Hope this is kinda helpful:)

tatuchka [14]3 years ago

3 0

Answer:

197.6

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Write expression

13[62 ÷ (52 - 42) + 9]

Step 2: Brackets - Parenthesis (Subtract)

13[62 ÷ 10 + 9]

Step 3: Brackets - Division

13[6.2 + 9]

Step 4: Brackets - Addition

13[15.2]

Step 5: Multiply

197.6

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Given the radius r and the tangent line AB, the length of the line OA is 24 units

<h3>How to determine the length OA?</h3>

The radius r and the tangent line AB meet at a right angle.

By Pythagoras theorem, we have:

AB² = OA² + r²

So, we have:

24² = OA² + 7²

Rewrite as:

OA² = 24² - 7²

Evaluate

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Take the square root of both sides

OA = 23

Hence, the length of OA is 24 units

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Step-by-step explanation:

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