Constant

Q. A combination of constants and variables connected by the signs of the fundamental operation is called _.

Q.

State whether True or False: All integers are constants.

1. True
2. False

Q.

All integers are constants, but not all constants are integers.

1. True

2. False

Q. Which of the following is/are a constant/constants ?

1. Number of days in a week
2. Temperature of a place in a day at different times
3. Number of months in a year
4. $3x{y}^2+14$

Q.

A quality which has a _______ numerical value is called a constant.

Q.

Question 24

Fill in the blanks to make the statement true.

The expression 13 + 90 is a ___.

Q.

Identify the finite and infinite sets and find the cardinal numbers of the finite sets$.$

$E=\{x:x=\frac{1}{n^2+1},n\in Z\}$

Q.

Write the coefficient of :-

$x$in $2x$

Q. Which of the following is a constant?

$5y,x,3.14,\frac{3}{2}x$

1. $5y$
2. $x$
3. $3.14$
4. $\frac{3}{2}x$

Q.

Question 18

Fill in the blanks to make the statement true.

In the formula, area of circle $=\pi r^2,$ the numerical constant of the expression $\pi r^2$ is ___

Q.

A __ is a number on its own, or sometimes a letter such as a or b to stand for a fixed number.

Q. How many variables are there in the expression: xy + 5?

1. 0
2. 1
3. 2
4. 3

Q.

The values of $x^2$ for x > -3 is set of

1. All positive real numbers

2. All negative real numbers

3. All non-positive real numbers

4. All non-negative real numbers

Q. If negative sign preceedes a bracket the sign of the terms inside the bracket will _____ when the bracket is removed

1. change
2. not change
3. remain the same
4. none

Q. what is the degree of a constant term

Q.

The constant term in $5x^2-4y^2-3x+10$ is

1. $10$

2. $5$

3. $4$

4. $-3$

Q.

Question 35

In the following question, fill in the blanks with correct symbol >, < or =.

$\frac{8}{8}$ ___ $\frac{2}{2}$

Q. Which of the following is an arithmetic expression?

1. 99 + 202 = x
2. 56 + y = x
3. 66 + 12
4. 40 + x = 20

Q.

A __ is a number on its own, or sometimes a letter such as a or b to stand for a fixed number.

Q.

All integers are constants.

1. True
2. False

Q. Which of the following is an arithmetic expression?

1. 66 + 12
2. 99 + 202 = x
3. 56 + y = x
4. 40 + x = 20

Q.

If $x<y$, then $x^2<y^2$ for all integer values of x and y. State true or false.

1. 1-b, 2-d, 3-c, 4-a

2. 1-b, 2-c, 3-d, 4-a

Q.

A __ is a number on its own, or sometimes a letter such as a or b to stand for a fixed number.

Q.

Which of the following are constants?

1. $88.88$

2. $x^2$

3. $1088.444$

4. $22x$

Q.

All integers are constants.

1. False
2. True

Q. Which of the following is an arithmetic expression?

1. 40 + x = 20
2. 66 + 12
3. 99 + 202 = x
4. 56 + y = x

Q. Find the missing value: $[12+(-4\left)\right]+......=12+[....+3]$

1. $-4,3$
2. $3,-4$
3. $3,4$
4. $-5,5$

Q. What is algebraic expression?

Q.

In the options given below, there are a few terms picked from an algebraic expression in x and y.
Which of them is a constant?

1. xy

2. 4x+6y

3. pxy

4. 7

Q.

Substitute the variables and constants from the following expressions.

Equation	Variable	Constant
2$x^3$ + 3 $y^2$
y + 1
10
$y^2$ + 4 xy + 1