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Nikhilsai Reddy

Shared from Polynomials - 1 on Jun 18, 2023 3:17 PM

What is the value of (a + b)³ + (a - b)³ + 6a(a² - b²)?

6a³

8a³

10a³

12a³

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Nikhilsai Reddy

Answer doesnot match

Answer doesnot match Please type your answer before submitting.

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Mandeep

Shared from Motion - III on Oct 14, 2020 7:49 PM

A car is moving with a speed of 20 m/s. When brakes are applied, it stops in 10 seconds. Retardation produced by the brakes is ______.

4 ms^-2

2 ms^-2

8 ms^-2

20 ms^-2

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Mangesh Joshi

Retardation = speed/time , sign convention ( + for acceleration and - for retardation ).so Retardation = -20/10 m/s/time (in s)=-2 m/s2

Retardation = speed/time , sign convention ( + for acceleration and - for retardation ).so Retardation = -20/10 m/s/time (in s)=-2 m/s2 Please type your answer before submitting.

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Mehak

Shared from Ear to Ear on Oct 12, 2020 11:32 PM

Which of the following options is not a reason for animal extinction?

Habitat destruction

Pollution

Hunting

Building national parks

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Manju George Tharkolil

National parks are built for conservation purposes by national governments. It is for conserving a species which will not lead to extinction of animals.

National parks are built for conservation purposes by national governments. It is for conserving a species which will not lead to extinction of animals. Please type your answer before submitting.

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Samridhi Mishra

Posted on Sep 08, 2020 4:19 PM

Which of the following plants has parallel venation?

Mango

Grass

Peepal

Coriander

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Manju George Tharkolil

Grass have parallel venation. It belongs to monocots, of which the characteristic is parallel venation.

Grass have parallel venation. It belongs to monocots, of which the characteristic is parallel venation. Please type your answer before submitting.

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Anupama Singh

Shared from Mathematics St on Sep 06, 2020 11:52 PM

What is the value of assumed mean of the given data, if mean of the data is 16?

f_i	d_i
4	-15
5	-10
7	-5
12	0
7	5
5	10

17.5

16.5

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Anupama Singh

How it has come

How it has come Please type your answer before submitting.

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CBSE Preparation for classes 3rd to 10th

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