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| By Christine_6
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Christine_6
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Quizzes Created: 1 | Total Attempts: 123
Questions: 7 | Attempts: 123

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• 1.

• 2.

Solve xy=1 for x.

• A.

X = y

• B.

X = 1/y

• C.

y = 1/x

• D.

X = 1

• E.

B. X = 1/y
Explanation
The given equation xy=1 can be solved for x by isolating x on one side of the equation. By dividing both sides of the equation by y, we get x = 1/y.

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• 3.

What type of flower is shown?

sunflower
Explanation
The correct answer is sunflower because the question asks for the type of flower shown, and the word "sunflower" is provided as the answer. Therefore, it can be inferred that the flower shown in the question is a sunflower.

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• 4.

• A.

Everything

• B.

Nothing

• C.

It is universal

• D.

Albert Einstein

A. Everything
C. It is universal
D. Albert Einstein
Explanation
The answer "everything, it is universal, Albert Einstein" suggests that there are multiple reasons why math is cool. The first reason is that math encompasses everything, implying that it is applicable in various fields and has a wide range of applications. The second reason is that math is universal, indicating that its principles and concepts are consistent and applicable across different cultures and societies. Lastly, the mention of Albert Einstein implies that math is cool because it was a subject of interest and study for the renowned physicist.

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• 5.

• 6.

What is the square root of 169?

• A.

11

• B.

12

• C.

13

• D.

28561

• E.

C. 13
Explanation
The square root of a number is a value that, when multiplied by itself, gives the original number. In this case, the square root of 169 is 13 because 13 multiplied by itself equals 169.

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• 7.

Which of the following is a quick and accurate way to test if a number is prime?

• A.

See if it is divisible by 2 or 3 only.

• B.

See if every number less than that number divides into it.

• C.

Only test numbers less than the square root of that number.

• D.

Only test numbers less than half of that number.

• E.

All of these are either incorrect or are not very quick.

C. Only test numbers less than the square root of that number.
Explanation
Testing numbers less than the square root of a given number is a quick and accurate way to determine if it is prime. This is because if a number is not prime, it can be factored into two smaller factors. If both factors are greater than the square root of the number, then their product would be greater than the original number. Therefore, if a number is not divisible by any number less than its square root, it is prime.

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• Current Version
• Feb 28, 2024
Quiz Edited by
ProProfs Editorial Team
• Jun 24, 2010
Quiz Created by
Christine_6

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