Answer:
Both are rational.
Step-by-step explanation:
As a rational number can be written in the form p/q where p,q are co-prime integers, let a=p1/q1 b=p2/q2.
And we know the product of two integers is an integer
p1q2, p2q1 are integers. And the sum or difference of two integers is rational, rather being specific, it is an integer.
Thus a+b and a-b is rational.
Umm 4.67 is and Avila so6.779 is going to bet that answer
Answer:
bellshaped
a) 68
b) 95
c) 99.7
Step-by-step explanation:
A bell shaped distribution is a normal distribution.
Those percentages: 68, 95 and 99.7 correspond to the values that lies around the mean within one, two and three standard deviations.
The answer to this is 113
