High School Placement Test Prep

1. What is the product of the square root of 25 and the square root of 81?

400

209

345

45

The product of the square root of 25 and the square root of 81 can be calculated by multiplying the two square roots together. The square root of 25 is 5, and the square root of 81 is 9. Multiplying 5 and 9 gives us 45, which is the correct answer.

Explanation

The product of the square root of 25 and the square root of 81 can be calculated by multiplying the two square roots together. The square root of 25 is 5, and the square root of 81 is 9. Multiplying 5 and 9 gives us 45, which is the correct answer.

2. Why is '5' a prime number?

Its square is 25

It is only divisible by 5

It is only divisible by itself and 1

It is an odd number

The given answer states that '5' is a prime number because it is only divisible by itself and 1. This is the definition of a prime number - a number that has no other divisors except for 1 and itself. Therefore, '5' fits this criteria and is considered a prime number.

Explanation

The given answer states that '5' is a prime number because it is only divisible by itself and 1. This is the definition of a prime number - a number that has no other divisors except for 1 and itself. Therefore, '5' fits this criteria and is considered a prime number.

3. What angle is complementary to 55°?

23°

78°

50°

35°

The angle that is complementary to another angle is the angle that, when added to the given angle, will result in a sum of 90 degrees. In this case, the angle that is complementary to 55 degrees would be 35 degrees. Adding 55 degrees and 35 degrees gives a sum of 90 degrees, which is the definition of complementary angles.

Explanation

The angle that is complementary to another angle is the angle that, when added to the given angle, will result in a sum of 90 degrees. In this case, the angle that is complementary to 55 degrees would be 35 degrees. Adding 55 degrees and 35 degrees gives a sum of 90 degrees, which is the definition of complementary angles.

4. What does this statement means: "He kicked the bucket" ?

He splashed the content of the bucket

He died

He broke the plastic bucket

He lifted the bucket with his leg

The phrase "He kicked the bucket" is an idiom that means someone has died. It is not meant to be taken literally, but rather as a euphemism for the end of someone's life.

Explanation

The phrase "He kicked the bucket" is an idiom that means someone has died. It is not meant to be taken literally, but rather as a euphemism for the end of someone's life.

5. What is a synonym of the verb "stop"?

Halt

Keen

Start

Wait

The synonym of the verb "stop" is "halt".

Explanation

The synonym of the verb "stop" is "halt".

6. Which of these describes in a sentence?

Adjectival phrases

Adjectives

Noun phrases

Adverbial clauses

Adjectives are words that describe or modify nouns or pronouns. They provide additional information about the noun or pronoun by answering questions such as what kind, which one, how many, or how much. Adjectival phrases are groups of words that function as adjectives, providing more detailed descriptions. In this context, the correct answer is "Adjectives" because it accurately describes the category of words that provide additional information about nouns or pronouns.

Explanation

Adjectives are words that describe or modify nouns or pronouns. They provide additional information about the noun or pronoun by answering questions such as what kind, which one, how many, or how much. Adjectival phrases are groups of words that function as adjectives, providing more detailed descriptions. In this context, the correct answer is "Adjectives" because it accurately describes the category of words that provide additional information about nouns or pronouns.

7. What is the reciprocal of 20?

0.05

0.5

10

20

The reciprocal of a number is obtained by dividing 1 by the number. In this case, the reciprocal of 20 is 1/20, which is equal to 0.05.

Explanation

The reciprocal of a number is obtained by dividing 1 by the number. In this case, the reciprocal of 20 is 1/20, which is equal to 0.05.

8. How many seconds make a day?

36000 seconds

446900000 seconds

6000 seconds

86400 seconds

There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. Therefore, to calculate the total number of seconds in a day, we multiply 60 by 60 and then by 24, which equals 86,400 seconds.

Explanation

There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. Therefore, to calculate the total number of seconds in a day, we multiply 60 by 60 and then by 24, which equals 86,400 seconds.

9. When is a word considered a synonym to the other word in a sentence?

When is has exactly opposite to the highlighted word

When it has exactly the same meaning as the highlighted word

When it has the nearest meaning to the highlighted word

When it can properly replace the highlighted word

When a word can properly replace the highlighted word in a sentence, it is considered a synonym. This means that the word has a similar meaning and can be used interchangeably without changing the overall meaning of the sentence.

Explanation

When a word can properly replace the highlighted word in a sentence, it is considered a synonym. This means that the word has a similar meaning and can be used interchangeably without changing the overall meaning of the sentence.

10. Which of this would make a good subject in a sentence?

Predicate

Noun clause

Object

Noun phrase

A noun phrase would make a good subject in a sentence because it consists of a noun and any words that modify or describe it. In a sentence, the subject is typically the noun phrase that performs the action or is being described. Therefore, a noun phrase is a suitable choice for a subject in a sentence.

Explanation

A noun phrase would make a good subject in a sentence because it consists of a noun and any words that modify or describe it. In a sentence, the subject is typically the noun phrase that performs the action or is being described. Therefore, a noun phrase is a suitable choice for a subject in a sentence.