plz give me answer till 11-19 in options
Answers
Question :-
Factorization of x² + 8x + 16 -
Answer -
x² + 8x + 16
= x² + 4x + 4x + 16
= x ( x + 4 ) + 4 ( x + 4 )
= ( x + 4 )( x + 4 )
= ( x + 4 )²
x² + 8x + 16 = ( x + 4 )²
Question :-
The common factor of 2x , 3x³ , 4 is
Answer -
They don't have anything common. So their common factor is 1.
Question :-
A bag has 4 red balls and 4 green balls, what is the probability of getting red ball?
Answer :-
Possible outcomes = 4
Total number of outcomes = 8
Probability = 4 / 8 = 1 / 2
Question :-
If die is thrown in air, the probability of getting even number is
Answer :-
Possible number of outcomes = 2,4,6 = {3}
Total number of outcomes = 6
Probability = 3 / 6 = 1 / 2
Question :-
The price of motorcycle was Rs. 34000 last year. It has increased by 20% this year the price of motorcycle now is
Answer :-
Increase = 34000 × 20%
= 34000 × 20/ 100
= 6800
Now, price = 34000 + 6800 = 40800
Question :-
The difference between the highest and lowest value of observation is called
Answer :-
The difference between the highest and lowest value of observation is called Range.
Question :-
Factorization of 12x + 36
Answer :-
12x + 36 = 12 ( x + 3 )
Question :-
Which of the following is a probability of impossible event.
Answer :-
0
Question :-
A person got 10% increase in his salary. If his salary was Rs. 50000, then the new salary is
Answer :-
10% of 50000 = 10 × 50000 / 100
= 5000
New salary = 50000 + 5000 = 55000