If a-b and a+b are twin prime a and b are necessarily

Step-by-step explanation:

Twin primes are defined as two primes which differ by 2.

Examples are (3,5), (5,7), (11,13),(17,19),(41,43),(71,73),(101,103)...

which can be written as

(4-1,4+1), (6-1,6+1), (12-1,12+1),(18-1,18+1),(42-1,42+1),(72-1,72+1),(102-1,102+1)...

from which we can observe that

- "b" must be equal to one to provide a difference of two as required by the definition of twin primes,

- "a" and "b" must be integers, since "b" must be one,

- "a" must be even.  If "a" is odd, then both a-b and a+b will be even, and they cannot be both primes, also

- "a" above 10 cannot end in the digit 4 or 6 else either (a-b) or (a+b) will be a multiple of 5, which is not prime.

If there are other conditions, feel free to add-on.

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.  

step-by-step explanation:

options