Question

the correct answer and write the alphabet of it:
i) If x+y=12 and y=-5 then x = ?
a) 7
b) - 7
c) 17
d) - 17
ii) The roots of quadratic equation x? - 8x + 15 =0) are?
a) (-3,5) b) (3,-5) c) (-3,-5) d) (3,5)
iii) For given an A.P. a = 3.5, d=0, n= 101, then t =?
a) 0
b) 3.5
c) 103.5 d) 104.5
iv) A die is thrown what is the probability of getting 4
b)
d)
n
2.
a)
c)
3
5
6
2.​

Answer 1

Answer:

1) a) 7

Step-by-step explanation:

given:

x+y=12 , y=5 x=?

put y=5above equation,

x+5=12 , x=12-5 then

x=7 Answer