Answer:
140,120
Step-by-step explanation:
sum of angles in a quadrilateral =360
sum of the 1st two angles=60+40=100
360-100=260
the ratio of the remaining angles 7:6
therefore:

=140
for the second angle
260-140=120
Answer:
μ−2σ = 1,089.26
μ+2σ = 1,097.62
Step-by-step explanation:
The standard deviation of a sample of size 'n' and proportion 'p' is:

If n=1139 and p =0.96, the standard deviation is:

The minimum and maximum usual values are:


Answer:
you have not put the full question
Step-by-step explanation:
1/2 is 0.5 The answer is 0.5 because 1/2 is like a half and we know that a this fraction is less than 1. So .5+.5=1 THE ANSWER IS 0.5!