Pls kindly solve it
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Answered by
0
Step-by-step explanation:
AnSwEr :-
2 or -6.
Given :-
The distance between the points A(2, -2) and B(-1, x) is equal to 5.
To Find :-
Value of x
SoluTion :-
Here,
x1 = 2
y1 = -2
x2 = -1
y2 = x
Formula for finding distance between two points is :-
\sqrt{{(x2 - x1) {}^{2} } + (y2 - y1) {}^{2} }
(x2−x1)
2
+(y2−y1)
2
Put the values in the formula :-
√ (- 1 - 2)² + {x - (-2)}² = 5
→ √ { (-3)² + (x + 2)² } = 5
→ √{ 9 + (x + 2)² } = 5
→ 9 + (x + 2)² = 25
→ (x + 2)² = 16
→ x + 2 = ± 4
_____________________
x + 2 = 4
→ x = 4 - 2
→ x = 2
_____________________
x + 2 = - 4
→ x = - 4 - 2
→ x = - 6
Hence, the value of x is 2 or -6.
__________________________
Answered by
1
Step-by-step explanation:
180-60
=120
hence
x+25)+(3x-17)=120
x+25+3x-17=120
4x+8=120
4x=112
x=112/4
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