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Every irrational number is a real number. Is it true or false .

Posted by Rohini Prajapati ..... 🤪 3 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Karan Baid 3 years, 1 month ago

Every irrational number is a real number. This statement is true because the set of real numbers consists of rational numbers and irrational numbers. For example, √2 is an irrational number which is also a real number. Thus, irrational numbers are a subset of real numbers.

Khushi K Patel 3 years, 1 month ago

Ya,true

Trisha Verma 3 years, 1 month ago

True

Om Shinde 3 years, 1 month ago

True because complete rational and irrational numbers is called real numbers

Chaithanya Kumar 8Th Class 3 years, 1 month ago

True because the complete rational and irrational numbers is called real numbers

ANSWER

In triangle ABC , AB =AC . The value of x is

Posted by Pari Agrawal 3 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Om Shinde 3 years, 1 month ago

The value of x is 130 degree

Rohini Prajapati ..... 🤪 3 years, 1 month ago

The value of x is 130° .

ANSWER

Ncert exercise 7.1 question 1

Posted by Aleeza Aleeza 3 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ipshita Choyal 3 years, 1 month ago

Given: In quadrilateral ABCD, AC=AD and AB bisects Angle A. To prove: ∆ABCD=∆ABCD Proof: In ∆ABC and ∆ABD AC=AD [Given] Angle BAC = Angle BAD[• AB bisects Angle A] AB=AC [Common] • Angle ABC= Angle ABD [ By SAS Congruency] Thus BC=BD [By CPCT].

ANSWER

What is square root of 25

Posted by Sameer Sinha 3 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Panjala Shreyan 3 years, 1 month ago

5

Shreya Chawla 3 years, 1 month ago

5

Kabeer Khan 3 years, 1 month ago

625

Aryan Rai 3 years, 1 month ago

5

Sikandra Kumar 3 years, 1 month ago

625

ANSWER

-2x+5y

Posted by Sakshi Singh 3 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Official Harshit 3 years, 1 month ago

Answer is same what you have written

ANSWER

How many days in year

Posted by Aditya Patil 3 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Shreya Chawla 3 years, 1 month ago

365 days and 366 days if it's a leap year

Official Harshit 3 years, 1 month ago

There are 365 Days in Every Year But 366 Data in a Leap Year because in leap year February have 29 Days

Dheeraj Carpenter 3 years, 1 month ago

365 day's and 366 in lip year

Akshita Pathania 3 years, 1 month ago

In leap year:-366 days In normal year:-365 days??

Noman Shaherawala 3 years, 1 month ago

365

ANSWER

Age of x exceeds age of y by 7 years. This statement can be expressed as linear equation

Posted by Murugan Sriram 3 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Pra Jit 3 years, 1 month ago

We can say that X exceeds Y by 7 years so X =X+7(since X=Y and add 7)

Shreya Chawla 3 years, 1 month ago

X = Y + 7

Mayank Rawandhe 3 years, 1 month ago

x = y + 7

ANSWER

Asurrvey

Posted by Aaqib Khan 3 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Give the equation of two lines passing through (2,14). How many more such lines are there and why

Posted by Ragini Rao 3 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

𝕷𝖊𝖌𝖊𝖓𝖉 🏆 🍑 🎀 𝒜𝓁☯𝓃𝑒 𝑅𝒶𝓈𝒽𝒾 🎀 🍑 3 years, 1 month ago

x - y = - 12

𝕷𝖊𝖌𝖊𝖓𝖉 🏆 🍑 🎀 𝒜𝓁☯𝓃𝑒 𝑅𝒶𝓈𝒽𝒾 🎀 🍑 3 years, 1 month ago

x-y=-12

Mayank Rawandhe 3 years, 1 month ago

x + y = 16 Infinite lines

ANSWER

Exercise 14.2 solution

Posted by Xx Choudhary 3 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Sarfaraj Ahmed 3 years, 1 month ago

The blood groups of 30 students of class 8 are recorded as following

Sarfaraj Ahmed 3 years, 1 month ago

The blood of 30 students of class VIII are recorded as follows

ANSWER

An umbrella is made by stitching 10 triangular pieces of cloth of two different colours each piece measuring 20 CM 50 cm 50 cm how much cloth of each colour is required for the umbrella

Posted by Ashvin Singh 3 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Aman Dhanoa 3 years, 1 month ago

Sides of triangular cloth a=20cm , b=50cm, c= 50cm S=20+50+50/2 = 120/2 = 60cm Area of triangle = use heron's formula here That is ::: root s( s-a) ( s- b) ( s- c) Put the value of s , a , b and c And your answer will be 200root 6cmsquare Area of 5 triangular pieces of one colour = 5×200 root6= 1000root6cm square Area of 5 pieces of other colour= 5×200 root6= 1000root 6 square I hope this is clear to you

ANSWER

13.4 q no6

Posted by Kaushal Kumar 3 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Mani Gehlot 3 years, 1 month ago

1000 value

ANSWER

ABCD is a square . its diagonals AC and BD intersect each other at O. Find the measure of angle cad and angle dbc

Posted by Paarth Varshney 3 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Shreya Chawla 3 years, 1 month ago

ABCD is a square whose diagonals AC and BD intersect each other at right angles at O. (i)∴∠AOB=∠AOD=90 ∘ In △ANB ∠ANB=180 ∘ −(∠NAB+∠NBA) ⇒∠ANB=180 ∘ −(45 ∘ + 2 45 ∘ ) since NB is bisector of ∠ABD ⇒∠ANB=180 ∘ −45 ∘ − 2 45 ∘ ⇒∠ANB=135 ∘ − 2 45 ∘ But ∠LNO=∠ANB(vertically opposite angles) ∴∠LNO=135 ∘ − 2 45 ∘ ........(1) Now in △AMO, ∠AMO=180 ∘ −(∠AOM+∠OAM) ⇒∠AMO=180 ∘ −(90 ∘ + 2 45 ∘ ) since MA is bisector of ∠DAO ⇒∠AMO=180 ∘ −90 ∘ − 2 45 ∘ ⇒∠AMO=90 ∘ − 2 45 ∘ ........(2) Adding (1) and (2) we get ∠LNO+∠AMO=135 ∘ − 2 45 ∘ +90 ∘ − 2 45 ∘ ⇒∠LNO+∠AMO=225 ∘ −45 ∘ =180 ∘ ⇒∠LNO+∠AMO=180 ∘ (ii)∠BAM=∠BAO+∠OAM ⇒∠BAM=45 ∘ + 2 45 ∘ =67 2 1 ∘ And ⇒∠BMA=180 ∘ −(∠AOM+∠OAM) ⇒∠BMA=180 ∘ −(90 ∘ + 2 45 ∘ ) ⇒∠BMA=90 ∘ − 2 45 ∘ =67 2 1 ∘ ∴∠BMA=∠BAM (iii) In quadrilateral ALOB ∵∠ABO+∠ALO=45 ∘ +90 ∘ +45 ∘ =180 ∘ ∴,ALOB is a cyclic quadrilateral.

ANSWER

248410 +750

Posted by Emo . 3 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Anamika Sharma 3 years, 1 month ago

249,160

Official Harshit 3 years, 1 month ago

Your Answer Is 249160?

.......... .......... 3 years, 1 month ago

249160

Rohit Saini 3 years, 1 month ago

249160??

Vikas Gurjar 3 years, 1 month ago

249160

ANSWER

Algeria indendis

Posted by Devendra Nagar Nagar 3 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Adarsh Kumar 3 years, 1 month ago

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Adarsh Kumar 3 years, 1 month ago

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ANSWER

(3a-7b-c)²

Posted by Mudit Kumawat 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Adarsh Kumar 3 years, 1 month ago

(3a-7b-c)² =(3a)² +(-7b)² +(-c)² +2(3a)(-7b) +2(-7b)(-c) +2(-c)(3a)_____________=9a²+49b²+c² -42ab+14bc-6ac✓✓✓✓

Ayush Raj 3 years, 1 month ago

Sdddffft

ANSWER

Properties of isosceles triangle

Posted by Srishti Parihar 3 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Official Harshit 3 years, 1 month ago

I will Provide You Very Best Solution It is The Triangle have Two same side and one different side is called Isosceles Triangle ?

Mukesh R Reddy 3 years, 2 months ago

Each geometric figure has some properties that make it different and unique from the others. Here is a list of a few properties of isosceles triangles: The two equal sides of an isosceles triangle are called the legs and the angle between them is called the vertex angle or apex angle. The side opposite the vertex angle is called the base and base angles are equal. The perpendicular from the vertex angle bisects the base and the vertex angle.

Astha Verma 3 years, 2 months ago

The triangle which have two sides equal and one side and unequal is called an isosceles triangle

Pra Jit 3 years, 2 months ago

Simple two sides and Angles are equal in an isosceles triangle?

ANSWER

P(t)=2+t+2t²-t³

Posted by Mohd Iklakh 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Shreya Chawla 3 years, 1 month ago

P(t)=2+t+2t2-t3 then the values of p(0),p(1),p(2) are respectively p(t)=2+t+2t2-t3 p(0)=2+0+2*0*2-0*3 =2 p(1)=2+1+2*1*2-1*3 =4 p(2)=2+2+2*2*2-2*3 =9

ANSWER

Ex 13.2 q-9

Posted by Bhaskar Parashar 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years, 2 months ago

<a href="https://mycbseguide.com/course/cbse-class-09-mathematics/1234/">https://mycbseguide.com/course/cbse-class-09-mathematics/1234/</a>

ANSWER

(5x-13y)

Posted by Priyanshi Patel 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Official Harshit 3 years, 1 month ago

Answer Is The Same Thing You Have Written In Question 5x-13y

ANSWER

The sides of a triangle are 61,54,35cm.find the length of the smallest and the longest altitude. .. Class 9 herons Formula .

Posted by Param Badhran 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Muskan Choudhary 3 years, 2 months ago

The length of its longest altitude is 53.665 cm. Sides of triangle --- a=35 cm , b=54cm & C = 61cm. Now ,. Area =√s(s-a)(s-b)(s-c). Where S = a+b+c/2. • s=35+54+61/2 = S= 75. Now area = √75(75-35)(75-54)(75-61). = Area = 939.1485cm² smallest side is 35cm so, area of triangle = 1/2 ×base ×height = 939.1485=1/2×35×height = 939.1485×2/35 = Height. Now height = 53.665. Hence the length of its longest altitude is 53.665Cm

ANSWER

Find the square root of 121 x 400 x 961.

Posted by Arya Patil__ 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Chaithanya Kumar 8Th Class 3 years, 1 month ago

121×400×961=46512400 Square root of 46512400=6820

ANSWER

express 144 as the sum of first consecutive odd numbers. Pls help me to solve this?

Posted by Arya Patil__ 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Arya Patil__ 3 years, 2 months ago

Thank you very much ☺️

Shreyashree Mishra 3 years, 2 months ago

1+3+5+7+9+11+13+15+17+19+21+23 Hope it will help you ?

ANSWER

to obtain the square root of any given positive real number (say 6.5) through an activity involving paper folding and construction geometry

Posted by Amrita Ghoshal 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Can zero is a rational number

Posted by Darshil Purohit 3 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Shaurya Maini 3 years, 2 months ago

Yes it is a rational number because it can be expressed in the form 0/1 and 0/2

? Akanksha Dhaka ? 3 years, 2 months ago

Yes zero can be rational number

Aaditya Sharma 10 3 years, 2 months ago

Yes

Mayank Rawandhe 3 years, 2 months ago

Yes

Sudha Chauhan 3 years, 2 months ago

Yes,zero can be a rational number bc we can represent 0 in p/q form as 0/1 or 0/2 and many more

ANSWER

What is SAS?

Posted by Shubham Kumar 3 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Bhavna Sharma 3 years, 1 month ago

Side angle side

Shreyashree Mishra 3 years, 2 months ago

It's side-angle-side Now a question may arise in your mind that what's it actually? It means that is in two triangles,two angles and the corresponding sides are equal then we can say that both the triangles are congruent.

Mayank Rawandhe 3 years, 2 months ago

Yes the same answer

Parth Variya 3 years, 2 months ago

SAS (side angle side)by this criteria we can prove that two triangle are congruent

Trisha Verma 3 years, 2 months ago

Side angle side is criteria to prove triangles congruent .

ANSWER

6/5148=

Posted by Mahir Hussain 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Mayank Rawandhe 3 years, 2 months ago

You have done it or used calculator

Pra Jit 3 years, 2 months ago

By long division method I got the answer as 0.00116550116 (in which the. 00116550116 are repeated numbers as the term 6/5148 is a non-terminating form)

ANSWER

2-1=

Posted by Mahir Hussain 3 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Shubham Kumar 3 years, 2 months ago

1

Pra Jit 3 years, 2 months ago

=1??

Pra Jit 3 years, 2 months ago

2-1 = 2-1 = 2-1 = 2-1 ...

Gurjoban Preet 3 years, 2 months ago

1

Shaurya Singh 3 years, 2 months ago

1

ANSWER

A polynomial containing one-zero t erm is called

Posted by Vrushali Wanave 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Pra Jit 3 years, 2 months ago

Monomial

ANSWER

The difference between the sides at right angles in a right angle triangle is 14 cm . The area of triangle is 120cm² . Calculate the perimeter

Posted by Vaishnavi Rathi 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years, 2 months ago

let one side at right angle be x
the other must be x-14

area of a triangle =(1/2) × (height) (base)
120 = (1/2)(x)(x-14)
120 = (x^2 -14x)/2
240 = x^2 -14x

x^2 -14x -240 = 0
x^2 -24x +10x -240 =0
x (x-24) + 10 (x-24) =0
(x-24)(x+10)=0

now, find x
x-24 =0
x = 24

again
x+10 =0
x = -10

as the side couldn't be -v so the value of x as a side must be 24cm
so the measure of one side we got is x =24cm and the other side = x-14 = 24 -14 =10cm
apply pythagoras theorem for third side as it is a right angled triangle
[let hypotaneous be a]
(24)^2 + (10^2) = a^2
576 +100 = a^2
676 = a^2
a = 26 cm
so the hypataneous = 26cm
perimeter of a triangle = sum of all sides
= (24 + 10 + 26 ) cm
= 60cm

ANSWER

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