Question

fill in tha blanks.
(1 ) cofficient of x in 2-x'2-3x is .....
( 2 ) the zero's of polynomial 3x+5 is ....
( 3 ) if ( 2,5 ) is one of the solution of linear equation 5x+ky=20, then find value of k.
( 4 ) p(E) =0.37 then p(E not )=........​

Answer 1

Answer:

(1) -3

(2) -5/3

explanation: 3x+5 = 0

3x = -5

x = -5/3 is the zero.

(3) 2

explanation: Here, x = 2 and y = 5

5(2)+k(5) = 20

5k = 20-10

k = 10/5

k = 2

(4) 0.63

explanation: p(E) + p(E not) = 1

0.37 + p(E not) = 1

p(E not) = 1-0.37

p(E not) = 0.63