Question

A Treaty of Sevres
B Treaty of Versailles
C Treaty of Lausanne
D. Treaty of Constantinople
3
Which of the following was the reason for calling off the Non-cooperation Movem
A Pressure from the British Government
B. Second Round Table Conference
C Gandhiji's arrest
D. Chauri-Chaura incident
Fill in the blank:
Business Processes Outsourcing (BPO) is an example of - Industry in India
OR
Green Revolution has helped
Industry to expand in different parts of
5
Choose the correctly matched pair about the Primitive Cultivation in India from th
options
A Dahiya - Madhya Pradesh
B. Kumari-Jharkhand​

Answer 1

Answer:

D is the first answer and I don't know

Answer 2

Given:-

Points are (4 , k) and (1 , 0)

Distance between the points (4 , k) and (1 , 0) is 5

To Find :-

Possible value of K

Solution :-

We know that :

Distance between two points (x₁ , y₁) and (x₂ , y₂) is given by :-

$\bigstar\;\;\pink{\mathsf{Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}}$

We are given, points are (4 , k) and (1 , 0).Where :-

x₁ = 4

x₂ = 1

y₁ = k

y₂ = 0

⠀⠀⠀⠀⠀$\small\underline{\pmb{\sf According \: to \: the \: question :-}}$

$\: \: \: \: \: \: \: \:\pink{ :\implies \mathsf{\sqrt{(1 - 4)^2 + (0 - k)^2} = 5}}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{(1 - 4)^2 + (0 - k)^2 = 25}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{(-3)^2 + (-k)^2 = 25}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{9 + k^2 = 25}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{k^2 = 25 - 9}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{k^2 = 16}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{k = \sqrt{16}}$

$\: \: \: \: \: \: \: \: :\implies \mathsf{k = \sqrt{(\pm\;4)^2}}$

$\: \: \: \: \: \: \:\pink{ \: :\implies \mathsf{k = \pm\;4}}$

$\therefore\:\underline{\textsf{ Possible values of k are \textbf{± 4}}}.$