There is no irrational number between 9 and 10
This is so because any number that one can conceive between 9 and 10 will be some fraction (it will be more than 9 and less than 10)
But if a number can be written with definitive fractional form has to be rational
So any intermediate number between 9 and 10 is never irrational.
Answer:
D)
Step-by-step explanation:
ASSUMING NORMAL DISTRIBUTION, LESS THAN 10% AT LOWER END
OF 15.34 MEANS [DENOTING MEAN BY M AND Standard Deviation. BY S]
M±AS=20%....................M-AS=15.34
FOR 20% LEVEL .......A=1.281........FROM TABLES
M-1.281×S=15.34............................1
SIMILARLY
M±BS=40%...................M+BS=16.31
FOR 40% LEVEL .............B=0.841...................FROM TABLES
M+0.841×S=16.31.............................2
EQN.2 - EQN.1
2.122×S=0.97
S=0.457=0.46
M=15.926= 15.93
HENCE, D IS THE ANSWER
that is D. μ = 15.93, σ =.46
The unit cm2 is used to measure B. area.
To measure mass, you'd use kilograms, or any other variation of gram. Volume is measured in cm3 or any other variation of cubic meter. Length is measured in centimeters, without the square or the cube.
It would be 48in because 4 times 6 is 24 and 24 times 2 is 48