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Express each number as a product of its prime factors 140, 156, 3825, 5005, 7429

Posted by Meenakhsy Majhi 5 years, 2 months ago

1 answers

Yogita Ingle 5 years, 2 months ago

(i) 140 = 2 x 2 x 5 x 7 =2² x 5 x 7
(ii)156 =2 x 2 x 3 x 13 =2² x 3 x 13
(iii)3825 =3 x 3 x 5 x 5 x 17 =3² x 5² x 17
(iv)5005 =5 x 7 x 11 x 13 =5 x 7 x 11 x 13
(v)7429 =17 x 19 x 23 =17 x 19 x 23

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A man standing on the deck of the ship which is 20 m above the sea-level, observes the angle of elevation of a bird as 30 and the angle of depression of its reflection in the sea as 69. Find the height of the bird.

Posted by Gagandeep Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

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From the top of a cliff 20 metre high the angle of elevation of the top of a tower is found to be equal to the angle of depression of the foot of the tower the height of the Tower is?

Posted by Sunidhi Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Gagandeep Singh 5 years, 2 months ago

20m + 20m = 40 m

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Gagandeep Singh 5 years, 2 months ago

20m

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TANQ + COTQ

Posted by Ragini 《Solanki》♡♤ 2 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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Find the LCM and HCF of 12, 15 and 21 by the prime factorization method.

Posted by Vishnupriya Ravi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Diksha Dangi 5 years, 2 months ago

Given : 12, 15 , 21 Prime factor of 12 : 2*2*3 Prime factor of 15 : 3*5 Prime factor of 21 : 3*7 HCF of 12, 15 ,21 : 3 LCM of 12 , 15 , 21 : 420

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Express 140 as a product of its prime factor

Posted by Vishnupriya Ravi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Diksha Dangi 5 years, 2 months ago

140 : 2*2*5*7

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2x5c

Posted by Akash Sidhu 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Riya Philip 5 years, 2 months ago

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Adesh Shitole 5 years, 2 months ago

Hwgshs

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Find the coordinates of the point which divides the join of (-1,7) and (4,-3) in the ratio 2:3

Posted by Ashish Bishnoi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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Vedic maths ch 6 solution

Posted by Priya Jain Priya Jain 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Sachin Ray 5 years, 2 months ago

Send me the link

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Riya Philip 5 years, 2 months ago

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The value of (tan1 tan2 tan3........tan89) is

Posted by Sujal Khanduri 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Gagandeep Singh 5 years, 2 months ago

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Sunidhi Singh 5 years, 2 months ago

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Riya Philip 5 years, 2 months ago

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A plus b Ka hol square

Posted by Kashish Chahar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Yangzee Sherpa 5 years, 2 months ago

“a^2+2ab+b^2” HoPe It HeLpS yOu??

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Ajin Ajin 5 years, 2 months ago

a2 + 2ab + b2

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Ajin Ajin 5 years, 2 months ago

a²+b²+2ab I HOPE IT HELPS YOU

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Nidhi Jain 5 years, 2 months ago

a²+b²+2ab

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If in a triangle ABC , right angle at c if tan A=1√3 and tan B=√3 then probe that sinAcosB+casAsinB=1

Posted by Nancy Yadav 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Riya Philip 5 years, 2 months ago

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Yogita Ingle 5 years, 2 months ago

Δ ABC is a Right Triangle at ∠C = 90°

To Find:

sin A × cos B + cos A × sin B = ?

Solution:

Δ ABC is a Right Triangle at ∠C = 90° .......Given

Also

Therefore,

∠ A = 30°

Now in ΔABC

.........angle sum Triangle property

substituting the values we get

So the value of

sin A × cos B + cos A × sin B =

Therefore

sin A × cos B + cos A × sin B = 1

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Derive and explain the PYTHAGORAS THEOREM..

Posted by Mukul Kumar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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Solve by factorisation metod x+1/x=11*1/11

Posted by Sayna Patel 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Dhyey Sonani 5 years, 2 months ago

In valid question

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4 divided by 0 is equal to?

Posted by Ajay Dwiwedi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Pinky Singh 5 years, 2 months ago

It's 0

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Aprita Pal 5 years, 2 months ago

Undefined

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Praveen Singh 5 years, 2 months ago

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Riya Philip 5 years, 2 months ago

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Riya Philip 5 years, 2 months ago

Undefined

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The point of intersection of the less than ogive and the more than ogive is (36.5,15).The median is………

Posted by Dharya Thakkar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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Real life application of section formula

Posted by Samruddhi Br 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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Prove the following identities, where the angles involved are acute angles for which the expressions are defined. (cosec Φ-cot Φ)^2=1-cosΦ/1+cosΦ

Posted by Angel Shibu 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Dhyey Sonani 5 years, 2 months ago

From LHS (CosecA-cotA)² =(1/sinA - cosA/sinA)² ={(1-cosA) /sinA}² =(1-cosA) ² /sin²A =(1-cosA) ²/ (1-cos²A) =(1-cosA) (1-cosA) / (1-cosA) (1+cosA) =(1-cosA) /(1+cosA) =RHS

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Aditya Kumar 5 years, 2 months ago

From LHS (CosecA-cotA)² =(1/sinA - cosA/sinA)² ={(1-cosA) /sinA}² =(1-cosA) ² /sin²A =(1-cosA) ²/ (1-cos²A) =(1-cosA) (1-cosA) / (1-cosA) (1+cosA) =(1-cosA) /(1+cosA) =RHS

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Riya Philip 5 years, 2 months ago

R u mallu?

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Riya Philip 5 years, 2 months ago

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Statistick

Posted by Dasaratha Barik 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Tejasvini S 5 years, 2 months ago

Stactis

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Find sum of first 30 integers divisible by 8

Posted by Kashish Dua 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Riya Philip 5 years, 2 months ago

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Yogita Ingle 5 years, 2 months ago

The number series 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, . . . . , 240.

The first term a = 8

The common difference d = 8

Total number of terms n = 30

step 2 apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 30/2 x (8 + 240)

= (30 x 248)/ 2

= 7440/2

8 + 16 + 24 + 32 + 40 + 48 + 56 + 64 + 72 + 80 + 88 + 96 + . . . . + 240 = 3720

Therefore, 3720 is the sum of first 30 positive integers which are divisible by 8

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Test paper

Posted by Abhishek Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Manish Sharma 5 years, 2 months ago

Thanks

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Riya Philip 5 years, 2 months ago

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Riya Philip 5 years, 2 months ago

Of which subject?

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Solve for x by quadratic formula: x-1/x-2 + x-3/x-4 = 10/3

Posted by Raveena Beniwal 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Raveena Beniwal 5 years, 2 months ago

What is in this site

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Riya Philip 5 years, 2 months ago

Join betternation.xyz This is a site where u can have a lot of friends and fun ? ? ?

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If the HCF of 408 and 1032 is expressed in the form of 1032m-408 ) 5

Posted by Himanshu Kaushik 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Dhyey Sonani 5 years, 2 months ago

1032=408×2 + 216 408 = 216×1 + 192 216 = 192×1 + 24 192=24×8 + 0 so the hcf will be 24 now 24 = 1032 - 408×5 1032m - 2040 = 24 m=2

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Dasaratha Barik 5 years, 2 months ago

Statistick

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Riya Philip 5 years, 2 months ago

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Yogita Ingle 5 years, 2 months ago

1032=408×2 + 216

408 = 216×1 + 192

216 = 192×1 + 24

192=24×8 + 0

so the hcf will be 24
now

24 = 1032 - 408×5

1032m - 2040 = 24

m=2

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Anshuman Omm 5 years, 2 months ago

m=2/5

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Trigonometric ratio of 0° and 90°

Posted by Om Prakash 5 years, 2 months ago

CBSE > Class 10 > Mathematics

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Real life application for section formula

Posted by Samruddhi Br 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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x/3+y/4=11 5x/6-y/3=-7 Solve in substitution, elimination, cross multiplication method

Posted by Vivek N 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Eshan Shah 5 years, 2 months ago

X=6 Y=36

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Is basic proportionality theorem true for right angle triangle also? If yes, Then write an activity to prove it by showing the ratios similar.

Posted by Shubham Pujara 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Riya Philip 5 years, 2 months ago

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Shubham Pujara 5 years, 2 months ago

Ratios of corresponding sides.

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Find the value of (26+15√3)^2/3 -(26+15√3)^-2/3

Posted by Akanksha Bhadoria 🙃🙃 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Philip 5 years, 2 months ago

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If two zeroes of the polynomial x3 – 5x2 + 2x + d are respectively – 1 and 2, then evaluate d.

Posted by Shubham Kumar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Rimple Kumari Kumari 5 years, 2 months ago

Liner equation and two variyebal

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Shubham Pujara 5 years, 2 months ago

By putting the value of x as -1 and 2 one by one the given polynomial 1) when x=-1 (-1)^3-5(-1)2+2(-1)+d=0 # -1-5-2+d=0 # d=8 Similarly on putting the value of x as 2 we will get d=8. Therefore the required value of d=8. Hope it will be helpful

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Riya Philip 5 years, 2 months ago

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Water in canal6m wide and1.5mdeep is flowing with a speed of 10km/h . How much area will it irrigate in 30 minutes if 8cm of standing water is needed?

Posted by Aditya Anand 5 years, 2 months ago

CBSE > Class 10 > Mathematics