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Using suitable Identity evaluate 1.05*9.5

Posted by Arnav Gupta 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Divyansh Goel 6 years, 11 months ago

By using the property (x+a)(x+b)=x^2(a+b)x+an (1+0.05)(1+8.5)=1^2+(0.05+8.5)1+0.05×8.5 1+8.55+0.425=9.975

ANSWER

Is 1069 perfect Square? How do we know

Posted by Mitesh Patel 6 years, 11 months ago

CBSE > Class 08 > Mathematics

3 answers

Swati Burnwal 6 years, 10 months ago

No

Khushi Roy 6 years, 11 months ago

no

Ashutosh Singh Tomar 6 years, 11 months ago

The way by which we have to find answer is the prime factorisation like 1069 is not perfect square.

ANSWER

Is 1069 perfect square ? How do we look l know

Posted by Mitesh Patel 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Sir i had problem regarding 11.4,Q5

Posted by Aniruddha Dey 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogesh Turker 6 years, 11 months ago

Yess

ANSWER

I do not understand your solutions of math give some solution to me of my question

Posted by Satish Kumar 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Prove that :(a÷b)^-m=(a÷m)^m

Posted by Part 12 Mohanthy 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

If x+1/x=3 find x^4+1/x^4

Posted by Yasmin Maniyar 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Sis snooze

Posted by Himanshu Hacker 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Blueprint of mathematics 8th class

Posted by Jitender Rawat 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Use identity and find product (2x-y)(2x-y)

Posted by Pankhudi Rathod 6 years, 11 months ago

CBSE > Class 08 > Mathematics

2 answers

Savita Jain 6 years, 11 months ago

(2x-y)^2 = (2x)^2 - 2*2x*y +(y)^2 =4x^2 - 4xy + y^2

Savita Jain 6 years, 11 months ago

(2x-y)^2 (2x)^2 - 2*2x*y +(y)^2 4x^2 - 4xy + y^2

ANSWER

(a+b)^2-9c^2

Posted by Prem Patil 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Part 12 Mohanthy 6 years, 11 months ago

(a+b)^2-(3c)^2=(a+b+3c)(a+b-3c) Identity:a^2-b^2=(a+b)(a-b)

ANSWER

Rohan can do a piece of work in 24 days while raghav can do it in 30 days. In how many days can they complete it , if they work together?

Posted by Kajal Choudhary 6 years, 11 months ago

CBSE > Class 08 > Mathematics

2 answers

Himanshu Hacker 6 years, 11 months ago

2

Kajal Choudhary 6 years, 11 months ago

13 /1/3

ANSWER

What is comparing qantity

Posted by Annesha Mondal 6 years, 11 months ago

CBSE > Class 08 > Mathematics

4 answers

Raju Ansari 6 years, 11 months ago

It means that we have quantity of anything we compare ir with its quantity

Ayusha Bidkar 6 years, 11 months ago

Name of lesson which includes Percentage Profit and loss

Payal Ahlawat 6 years, 11 months ago

Comparing quantity menaning that we compare two objects or things

Kajal Choudhary 6 years, 11 months ago

56

ANSWER

Prove that" a" to the power zero is equal to one

Posted by Rishav Raj 6 years, 11 months ago

CBSE > Class 08 > Mathematics

3 answers

Kavilata Singh 6 years, 11 months ago

A to the power zero is one because of the law of exponent.

Mrityunjay Dutta 6 years, 11 months ago

a^0=a^x-x=a^x÷a^x=1

Kajal Choudhary 6 years, 11 months ago

1

ANSWER

Factorise:p^2+6p+8

Posted by Yasmin Maniyar 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years, 11 months ago

p₂ + 6p + 8
= p² + 4p + 2p + 8
= p(p+ 4) + 2 (p + 4)
= (p+ 4) (p + 2)

ANSWER

(2\3xy) +(_9/10x×xy×y)

Posted by Saksham Khatik 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Construct a rectangle MNOP MN = 6cm and angle NPO =60 degree

Posted by Ritik Thakur 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

44444+2

Posted by Sreya Tk 6 years, 11 months ago

CBSE > Class 08 > Mathematics

4 answers

?☺???Hrishi Khapekar???☺? 6 years, 11 months ago

44446

Nisha Bhujade 6 years, 11 months ago

44446

Kajal Choudhary 6 years, 11 months ago

4444 6

Purushottam Rai 6 years, 11 months ago

44446

ANSWER

2+222222

Posted by Kavinav Agrawal 6 years, 11 months ago

CBSE > Class 08 > Mathematics

5 answers

?☺???Hrishi Khapekar???☺? 6 years, 11 months ago

222224

Nisha Bhujade 6 years, 11 months ago

222224

Kajal Choudhary 6 years, 11 months ago

222, 224

Sreya Tk 6 years, 11 months ago

222224

Kavinav Agrawal 6 years, 11 months ago

222224

ANSWER

Find the volume of iron required to make an open box whose external dimension are 36 cm ×25 cm ×16.5cm the box Bing 1.5 CM thick throughout . If 1 cm cube of iron weight 8.5 gram find the weight of the empty box in kilogram

Posted by Shivanya Singh 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Shivanya Singh 6 years, 11 months ago

3960 cm3 , 33.66kg

ANSWER

5x - 4/6 = 4x + 1- 3x + 10/2

Posted by Anjali D 6 years, 11 months ago

CBSE > Class 08 > Mathematics

3 answers

Kajal Choudhary 6 years, 11 months ago

5/3

Yogita Ingle 6 years, 11 months ago

{tex}\begin{array}{l}5x-\;\frac46=\;4x+\;1-3x+\;\frac{10}2\\5x-\;\frac23=x\;+\;1+\;5\\5x\;-x\;=\;6+\;\frac23\\4x\;=\;\frac{20}{\begin{array}{l}3\\\end{array}}\end{array}{/tex}
{tex}\begin{array}{l}x\;=\;\frac{20}3\times\frac14\\x\;=\frac53\\\end{array}{/tex}

Mohd Shafi 6 years, 11 months ago

2

ANSWER

Simplify in 1 minutes 5×6+8^3+9-6^2×π×√6400

Posted by Mayan Manit 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Mohd Shafi 6 years, 11 months ago

11

ANSWER

Perimeter of circle and semicircle??

Posted by अभिषेक मिश्रा 6 years, 11 months ago

CBSE > Class 08 > Mathematics

3 answers

Vishal Nath 6 years, 11 months ago

The formula of semi-circle is pi r

Suyash Sainath 6 years, 11 months ago

circle=2×pi×r semi circle=pi×r

Yash Somya 6 years, 11 months ago

Circle=2×2/7xradiau

ANSWER

If x and y vary inversely as each other and x is equal to 10 when Y is equal to 6 find why when x is equal to 15

Posted by Raj Patil 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Ravi Gupta 6 years, 11 months ago

9

ANSWER

A right angle measure 90 degree

Posted by Dawa Sherpa 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

The diagonal of a quadilateral shaped field is 24 cm and perpendicular drooped on it from the remaining opposite vertices are 6 and 12 m . Find the area of the field

Posted by Mayank Dahiya 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Sneha Dube 6 years, 11 months ago

Half the quadrilateral and use the area of triangle 1÷2×24×6=72 1÷2×24×12=144 Add the both area you given a answer 144+72=216 The area of field =216

ANSWER

A wall hanging is marked for rupees 4800 the shopkeeper offers 10% discount on Earth if fat is received 8% for the customer fine amount paid by the customer to purchase the wall hanging

Posted by Zoha Qureshi 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

How to check direct and indirect proportion

Posted by Anjali Sah 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years, 11 months ago

Two values are said to be in direct proportion when increase in one results in an increase in the other. Similarly, they are said to be in indirect proportion when the increase in one results in a decrease in the other.

ANSWER

Area of cylander solution

Posted by Shakti Singh 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Devansh Bharadwaj 6 years, 11 months ago

2 Pi rh (r + h) and lateral 2Pi rh

ANSWER

Construction of quadrilateral

Posted by Saleha Parween 6 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

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