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3 years ago

Why is 315 the lcm of 21 and 45?

Mathematics

1 answer:

Maurinko [17]3 years ago

3 0

I hope this helps you

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What is the value of y when x = 43 A. 87 B. 85 C. 49 D. 45

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Answer:

A x

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Step-by-step explanation:

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3 years ago

Find x. Round to the nearest tenth if necessary.

Brilliant_brown [7]

Answer:

Step-by-step explanation:

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2 years ago

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Lelu [443]

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Step-by-step explanation:

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2 years ago

X-42=-33 what is the solution ?

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3 years ago

Read 2 more answers

Identify which of the following statement(s) is always true?

julia-pushkina [17]

Answer:

Statement 3

Step-by-step explanation:

Statement 1: For any positive integer n, the square root of n is irrational.

Suppose n = 25 (25 is positive integer), then

$\sqrt{n}=\sqrt{25}=5$

Since 5 is rational number, this statement is false.

Statement 2: If n is a positive integer, the square root of n is rational.

Suppose n = 8 (8 is positive integer), then

$\sqrt{n}=\sqrt{8}=2\sqrt{2}$

Since $2\sqrt{2}$ is irrational number, this statement is false.

Statement 3: If n is a positive integer, the square root of n is rational if and only if n is a perfect square.

If n is a positive integer and square root of n is rational, then n is a perfect square.

If n is a positive integer and n is a perfect square, then square root of n is a rational number.

This statement is true.

8 0

3 years ago