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10x square -18x cube +14x power 4

Posted by Mamta Sinha 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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(3a-2b)²+(3a+2b)²

Posted by Deepika Naagar 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years, 2 months ago

(3a- 2b)²+ (3a + 2b)²
= (3a)² - 2 (3a)(2b) + (2b)² + (3a)²+ 2 (3a)(2b) + (2b)²
= 9a2 - 12ab + 4b² + 9a² + 12ab + 4b²
= 9a2 + 9a² + 4b² + 4b²
= 18a² + 8b²

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(x+a)(x+b)=?

Posted by Rahul Krovvidy 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Keya Paul 7 years, 2 months ago

X2+x(a+b)ab

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Ten year ago my father was 7 times of my age and ten year ago my age was 2 times of my siters age and hence my sister is 10 times of my father find their present ages( both father suster and my age find)

Posted by Vansh Chauhan 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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(l+m)² -(l-m)²

Posted by Techy Trends Gaming 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Techy Trends Gaming 7 years, 2 months ago

Wah wah

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Yogita Ingle 7 years, 2 months ago

(l + m)2 - (l -m)2 = l² + 2lm + m²- (l² - 2lm + m²)
= l² + 2lm + m²- l² + 2lm - m²
= 2lm + 2 lm
= 4 lm

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The two number are in the ratio 5:8.If the sum of the number is 130° find tje measure of each angle

Posted by Lucky Maharathi 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Techy Trends Gaming 7 years, 2 months ago

Right

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Harsh Phogat 7 years, 2 months ago

Let the numbers be 5 x and 8 x. Their sum Is 130. 5x+8x = 130. 13x = 130 which implies x = 130/13 = 10 and hence 5(10) = 50 and 8(10) = 130 . The numbers are 50 and 130.

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What is the formulas of mensuration

Posted by Renu Khanna 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Techy Trends Gaming 7 years, 2 months ago

Which solid shape telll

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The total surface area of a cube is 150 cm2.find the l of one side of the cube and the volume of the cube

Posted by Syedgamer Yt 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Vaishnavi Singh 7 years, 2 months ago

Total surface area of a cube is equal to 6a^2 square units then we have: 6a^2 = 150 = a^2= 150÷ 6 = 25 = a^2 = √25= 5 , length= 5 cm and volume= a^3 cubic units = (5)^3 = 125 cubic units , answer

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X+(x+2)÷2

Posted by Abhinav Gaikwad 7 years, 2 months ago

CBSE > Class 08 > Mathematics

4 answers

Mabiya Ali 7 years, 2 months ago

3x+1

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Upendra Sahu 7 years, 2 months ago

3X +2

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Ashish Joshi 7 years, 2 months ago

X+(x+2)/2 . =2x+1

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Kaushal Kumar 7 years, 2 months ago

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5real life example of exponent

Posted by Siya Karangia Siya 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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4(x -5) =4x -5

Posted by Purva Phalle 7 years, 2 months ago

CBSE > Class 08 > Mathematics

3 answers

Ashish Joshi 7 years, 2 months ago

4(x-5)=4x-5 .=4x-20=4x-5 =4x-4x=-5+20 =x=15

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Kaushal Kumar 7 years, 2 months ago

The given equation is wrong

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Nishant Kumar 7 years, 2 months ago

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(xy+yz) square

Posted by Dolly . 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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What is probability ?

Posted by Delhi Generator 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Ashish Joshi 7 years, 2 months ago

Something that is likely to happen

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(10x-25)/3x

Posted by Vansh Rajour 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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-x + 2x +4x+2x divide by root 2xsq

Posted by Shivam Patil 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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The king , queen and jack of clubs are removed from a deck of 52 cards and the well shuffled . One card is selected from the remaining card, find the probability of getting a heart

Posted by Md. Faishal 6 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 8 months ago

{tex}{13 \over {49}}{/tex}

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The sum of the digits in a two digit number is 7.If we add 9 to the number,the digits are interchanged.Find the number

Posted by Ganesh Nath Rana 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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2x ×2x +40x_20x

Posted by Pratibha Jhamad 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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2x(x+5)=2x+5

Posted by Sushma Pandey 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Poonam Poonam 7 years, 2 months ago

2x+20x

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P square +1 p square -1=?

Posted by Parag Tiwari 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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Pq2 + q(p-1) - 1

Posted by Tanu Sahu 7 years, 2 months ago

CBSE > Class 08 > Mathematics

0 answers

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How to find the compound interest anually if - P=1800, R=10%,n= 1.5 yrs

Posted by Kritika Singh 7 years, 2 months ago

CBSE > Class 08 > Mathematics

3 answers

Upendra Sahu 7 years, 2 months ago

SI =PxRxT/ 100 SI=1800X10X1.5/100 SI=270 CI=P+SI CI=1800+270 CI=2070

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Ash . 7 years, 2 months ago

Put the formula principal × rate × time ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ 100

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Kaushlendra Singh 7 years, 2 months ago

A=P(1+100/r)n A=1800×11/10×11/10×3 A=6534

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Find the greatest possible length of the rope that can be used to measure two sticks of lengths 24m and 18m

Posted by Divyansh Vashishtha 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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What is simple interst and coumpound interest with formulas and examples

Posted by Kritika Singh 6 years, 8 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 8 months ago

Simple interest is a quick and easy method of calculating the interest charge on a loan
Using the simple interest formula: A = P(1 + rt) where P is the Principal amount of money to be invested at an Interest Rate R% per period for t Number of Time Periods.
Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on interest.
Compound interest can be calculated using the formula A = P (1 + r/n)^(nt), entering into it the initial principal amount (P), annual interest rate (r as decimal), time factor (t) and the number of compound periods (n).

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123456076468467-27538744+36676

Posted by Aditya Rao 7 years, 2 months ago

CBSE > Class 08 > Mathematics

2 answers

Akg Brand 7 years, 2 months ago

123456042461256

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Sahil Yadav 7 years, 2 months ago

123456042461256

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2+9

Posted by Anuradha Sharma 7 years, 2 months ago

CBSE > Class 08 > Mathematics

3 answers

Akg Brand 7 years, 2 months ago

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Divyansh Vashishtha 7 years, 2 months ago

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Pranay Tiwari 7 years, 2 months ago

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Prove volume. sq=xyz

Posted by Aman Rastogi 7 years, 2 months ago

CBSE > Class 08 > Mathematics

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Why is mensuration important for us

Posted by Sneha Khurana 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Aman Rastogi 7 years, 2 months ago

Because when be go to buy any land . and we read the papers of land if we not know mensuration we can,t deal it and we not find the measure of the land so, mensuration is important for us

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All formula in lesson 11

Posted by Rakshan Saarvesh 7 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Aman Rastogi 7 years, 2 months ago

C. S. A of square = 4a. Sq T. S. A=6a. Sq Where, a =side C. S. A of cuboid 2(l+b)*h T. S. A= 2(lb+bh+lh) C. S. A of cylinder=2πrh T. S. A=2π(r+h) Volume of cylinder =πr. Sq h Volume of square= (side)cube Volume of cuboid =l*b*h

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B+B=2B sovle this chapter playing with numbers.

Posted by Kajal Dogra 7 years, 2 months ago

CBSE > Class 08 > Mathematics