Explanation

The first five positive odd integers are:

1, 3, 5, 7, 9

Let's calculate their sum:

1 + 3 = 4

4 + 5 = 9

9 + 7 = 16

16 + 9 = 25

The sum is:

25

Explanation

The main aim of education is to equip students with knowledge, skills, and values needed in real-life situations.

It helps learners become responsible, productive, and adaptable members of society.

Explanation

The additive inverse of a number is what you add to a number to get zero.

In this context, 1 and -1 are additive inverses of each other, satisfying:

3 + (-1) = 2 and 1 - 3 = -2, showing the concept revolves around opposites in addition.

Explanation

Vaccination stimulates the immune system to produce antibodies, building resistance against specific viruses.

It prepares the body to fight off future infections by recognizing and attacking the pathogen.

Explanation

The idiom "see eye to eye" means to agree with someone.

In the sentence, it implies that students never agree with the examiners.

Explanation

If √x = 7, then squaring both sides gives x = 7² = 49.

So, the value is 49.

Explanation

Temperature increases or decreases the kinetic energy of particles, leading to melting, boiling, or freezing.

Pressure affects the arrangement of particles, especially in gases, influencing condensation or compression.

Explanation

Equal sets have exactly the same elements, regardless of order.

Since A = {a, b, c} and B = {b, c, a} contain the same elements, they are equal.

Explanation

A square has four equal angles, and each angle measures 90 degrees.

It’s a property of all regular quadrilaterals.

Explanation

The radius is half of the diameter, so: 16 cm ÷ 2 = 8 cm.

Radius is the distance from the center of the circle to any point on its edge.