Question 11 Mark
If the side of an equilateral triangle is $15y,$ then its perimeter is $45y.$
Answer
View full question & answer→true
Questions
TRUE-FLASE [1 Marks Each]
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Test yourself on this topic
34 questions · timed · auto-graded
Question 21 Mark
In the matchstick pattern
the number of matchsticks $= 2x$ number of
.
the number of matchsticks $= 2x$ number of
.
Answer
View full question & answer→true
Question 31 Mark
The area of a rectangle of length $x \ cm$ and breadth $=(x - 7) \ cm$ is $x(x - 7) sq \ cm.$
Answer
View full question & answer→true
Question 41 Mark
The area of the square whose side is of length $(m + 3)$ units, is $(m + 3)\times (m - 3)$ sq units.
Answer
View full question & answer→false
Question 51 Mark
The equations $2x + 1 = 3$ and $6x + 2 = 8$ have the same solution.
Answer
View full question & answer→true
Question 61 Mark
If the side of a square is $6 \ cm$. its perimeter is $36 \ cm.$
Answer
View full question & answer→false
Question 71 Mark
If the length and breadth of a rectangle are $5y$ and $3y$ respectively, then its perimeter is $8y.$
Answer
View full question & answer→false
Question 81 Mark
If each side of a square is $2x$ units, then its perimeter is equal to $8x$ units.
Answer
View full question & answer→true
Question 91 Mark
In the equation $5x = 20, 20$ is the variable.
Answer
View full question & answer→false
Question 101 Mark
$x$ hours $= 60x$ minutes
Answer
View full question & answer→true
Question 111 Mark
$x = 2$ is the solution of the equation $5x - 3 = 7$
Answer
View full question & answer→true
Question 121 Mark
$2x - 8 > 15$ is an equation
Answer
View full question & answer→false
Question 131 Mark
If the side of an equilateral triangle is $15y$, then its perimeter is $45y.$
Answer
View full question & answer→true
Question 141 Mark
In the matchstick pattern
the number of matchsticks $= 2x$ number of
.
the number of matchsticks $= 2x$ number of
.
Answer
View full question & answer→true
Question 151 Mark
The area of a rectangle of length $x \ cm$ and breadth $=(x - 7) \ cm$ is $x(x - 7) sq \ cm.$
Answer
View full question & answer→true
Question 161 Mark
The area of the square whose side is of length $(m + 3)$ units, is $(m + 3)\times (m - 3)$ sq units.
Answer
View full question & answer→false
Question 171 Mark
The equations $2x + 1 = 3$ and $6x + 2 = 8$ have the same solution.
Answer
View full question & answer→true
Question 181 Mark
If the side of a square is 6 cm. its perimeter is
36 cm.
Answer
View full question & answer→false
Question 191 Mark
If the length and breadth of a rectangle are $5y$ and $3y$ respectively, then its perimeter is $8y.$
Answer
View full question & answer→false
Question 201 Mark
If each side of a square is $2x$ units, then its perimeter is equal to $8x$ units.
Answer
View full question & answer→true
Question 211 Mark
In the equation $5x = 20, 20$ is the variable.
Answer
View full question & answer→false
Question 221 Mark
$x$ hours $= 60x$ minutes
Answer
View full question & answer→true
Question 231 Mark
$x = 2$ is the solution of the equation $5x - 3 = 7$
Answer
View full question & answer→true
Question 241 Mark
$2x - 8 > 15$ is an equation
Answer
View full question & answer→false
Question 251 Mark
State whether true/false: The following expression is a polynomial in one variable: $x^{10}+ y^3+ t^{50}$
$a.$ True $b.$ False
$a.$ True $b.$ False
Answer
View full question & answer→Clearly, the given expression $x^{10}+ y^3+ t^{50}$ contains three variables $x, y, t$ and $t$
Hence, the given expression is not a polynomial in one variable instead in three variables.
Hence, the given expression is not a polynomial in one variable instead in three variables.
Question 261 Mark
Some situations are given below. State true or false: Height of growing plant is constant.
$a.$ True $b.$ False
$a.$ True $b.$ False
Answer
View full question & answer→False
Question 271 Mark
State True or False, if the following expression is polynomial in one variable $($State reason for your answer$): \text{y}+\frac{2}{\text{y}} \ a.$ True $b.$ False
Answer
View full question & answer→The expression $\text{y}+\frac{2}{\text{y}}$ contain the term $\frac{2}{\text{y}},$
Here the exponent of y is $-1$, which is not a whole number.
Therefore, the given expression is not a polynomial in one variable.
Here the exponent of y is $-1$, which is not a whole number.
Therefore, the given expression is not a polynomial in one variable.
Question 281 Mark
State True or False, if the following expression is polynomial in one variable $4x^2- 3x + 7 \ a.$ True $b.$ False
Answer
View full question & answer→Clearly, the expression $4x^2- 3x + 7$ is a polynomial in one variable x because there is only one variable $x$ in the expression having the highest power $2,$ which is
whole number.
whole number.
Question 291 Mark
Some situations are given below. State true or false: The temperature of a day is variable.$a.$ True $b.$ False
Answer
View full question & answer→True
Question 301 Mark
Some situations are given below.State true or false. The number of days in the month of January are varying.
$a.$ True $b.$ False
$a.$ True $b.$ False
Answer
View full question & answer→False
Question 311 Mark
Some situations are given below. State true or false: Length of your classroom is constant.$a.$ True $b.$ False
Answer
View full question & answer→True
Question 321 Mark
State True or False, if the following expression is polynomial in one variable. $3\sqrt{\text{t}}+\text{t}\sqrt{2} \ a.$ True $b.$ False
Answer
View full question & answer→The expression $3\sqrt{\text{t}}+\text{t}\sqrt{2}$ contain the term $3\sqrt{\text{t}},$
Here exponent of t is $\frac{1}{2}$ which is not a whole number.
Therefore, the given expression is not a polynomial in one variable.
Here exponent of t is $\frac{1}{2}$ which is not a whole number.
Therefore, the given expression is not a polynomial in one variable.
Question 331 Mark
A real variable is a variable whose values are real numbers.$a.$ True $b.$ False
Answer
View full question & answer→True A variable which can take real numbers only as its value is called as a real variable.
Question 341 Mark
State True or False, if he following expression is polynomial in one variable $\text{y}^2+\sqrt{2}\ a.$ True $b.$ False
Answer
View full question & answer→Clearly, the expression $\text{y}^2+\sqrt{2}$ is a polynomial in one variable $y$ because there is only one variable $y$ in the expression having the highest power $2$, which is whole
number.
number.