Linear Equation of Class 7

The number of lines of symmetry in a scalene triangle is

A: 0

B: 1

C: 2

D: 3

Solution:

Fill in the blanks to make the statements true

The additive inverse of 0 is _____

Solution:

Explanation:

Two integers whose sum is zero are called additive inverse of each other.

Mathematically

Let x be any integer

x+(-x)=0

Final Answer:

Hence, The additive inverse of 0 is 0

Draw the net of the following cuboid

Solution:

Explanation: A net of a solid is a two-dimensional representation of a three-dimensional figure.

A net shows all the faces of a figure in one view and can be "folded" into the three dimensional shape.

Given solid figure is cuboid:

Thus, we have a net diagram of the given cuboid

Find the product

Find the product : 7.54 × 10

Solution:

Explanation:

We have;

7.54 ×10

As, we know that after multiplying a decimal number by 10 the point gets shifted one place to the right .

⇒ 7.54 ×10 = 75.4

Final answer: Hence, we concluded that 7.54 ×10 = 75.4.

2/5 x 5 1/5 is equal to

Solution:

Explanation:

Consider the given expression.

Correct Option is: (B)