Question

determine "x"
a)2
b)3
c)4
d)5
e)6​

Answer 1

Refer the attached photo.

Now come to the solution ⤵️

$\sf \longrightarrow$ Here, $\sf ( x , y ) = ( x , -3 )$

$\sf \longrightarrow$ So, we can say that x = x and y = -3

now, we have r = 5

$\sf \longrightarrow$ Now we know Pythagoras theorem,

here,

$\sf \longrightarrow$ hypotenuse = r = 5

$\sf \longrightarrow$ Side1 = y = -3

$\sf \longrightarrow$ Side2 = x = x

Now,

• ( Hypotenuse )² = (Side1)² + (Side2)²

• r² = ( - 3 )² + (x)²
• (5)² = 9 + x²
• 25 = 9 + x²
• 25 - 9 = x²
• x² = 16
• $\sf x = \sqrt{16}$
• x = 4

Hence, Option (C) is right ✔️

I hope it helps you ❤️✔️