Question

. If the points A(2,0), B(-5,0) and C(7,a-5) lie on
the x-axis, then find the value of a.
(a) 2 (b) 5 (c) 4 (d) 0​

Answer 1

Answer:

if the three points lie on the same axis then area will be 0

since,

1/2×(2(0-a+5)-5(a-5-0)7(0-0)=0 1/2×(-7a+35)=0

7a+35/2=0

a=5

* the answer will be 5

Answer 2

Answer:

the answer is 5

Step-by-step explanation:

mark as brain liest