Answer:
9h+2
Step-by-step explanation:
-3h+12+12h-10
Point estimate for the difference between two population proportions is the difference between the two sample proportions, written as:

and the standard deviation is given by

When np and n(1-p) is greater than 5, then the sampling distribution is approximately normal and we can use standard normal methods.
Thus, the propability of a test <span>for the difference between two population proportions is given by

</span>
Substitute

, so that

. The integral is then equivalent to

Then transforming back to

gives
If they're integers, that means they can't be fractions (such as 15/2 and 2).
So the only couples of integers that, when multiplied, result in 15 are:
1 and 15
5 and 3.
(there are no other possibilities as both 5 and 3 are not divisible further).
The smaller of the two sums (15+1; 5+3) is 5+3=8.
The least possible sum of a and b is 8.
Answer:
The slope is, 3
Step-by-step explanation:
Formula for slope(m) is given by:

or
.....[1]
Given the statement:

and 
Substitute these given values in [1] we have;
Simplify:
m = 3
Therefore, the value of slope is, 3