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tensa zangetsu [6.8K]
3 years ago
11

Use the order of operations to simplify 5*3 to the second power-15/5

Mathematics
1 answer:
ASHA 777 [7]3 years ago
7 0

Assuming the question reads:

5 \cdot 3^2 - 15 \div 5

The order of operations is as follows:

Parentheses

Exponents

Multiplication/Division

Addition/Subtraction

There are no parentheses in the equation.

There is an exponent in the equation. Solve this term first:

3^2 = 9

The equation should now read:

5 \cdot 9 - 15 \div 5

There are two multiplication/division operations in the equation. Solve them individually:

5 \cdot 9 = 45

15 \div 5 = 3

The equation should now read:

45 - 3

There is one subtraction operation. Solve this term for your answer:

45 - 3 = \boxed{42}

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Step-by-step explanation:

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The sets of numbers 3, 4, 5 and 8, 15, 17 are Pythagorean triples. Use what you know about the Pythagorean Theorem and explain o
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Answer:

When we have 3 numbers, like:

a, b and c.

Such that:

a < b < c.

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This is equivalent to the Pythagorean Theorem, where the sum of the squares of the cathetus is equal to the hypotenuse squared.

Now that we know this, we can check if the given sets are Pythagorean triples.

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Here we must have that:

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solving the left side we get:

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We must have that:

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Solving the left side we have:

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And in the right side we have:

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