Answer:
a b
m n
the 2nd one
Step-by-step explanation:
Answer:
12.08
Step-by-step explanation:
For each sunflower, there are only two possible outcomes. Either it germinates, or it does not. The probability of a sunflower germinating is independent of other sunflowers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The standard deviation of the binomial distribution is:

Seventy-six percent of sunflower seeds will germinate into a flower
This means that 
Samples of 800:
This means that 
The standard deviation for the number of sunflower seeds that will germinate in such samples of size 800 is:

Answer:
-1 :)
Step-by-step explanation:
Answer:
2lw + 2lh+2hw
Step-by-step explanation:
Answer:
1: 152
2: 152
3: 152
4: 28
Step-by-step explanation:
1-3: They are all congruent. So if you look at the given angle, it is the same as 1-3.
4: This one is tricky. Since a straight line is 180, you have to subtract 180-152.
Hope this helps!