Answer:
44.1 x 10^-2
Step-by-step explanation:
Since one grain
= 7 x 10^-5
6300kg = 7 x 10^-5 x 6300
Put 6300 in standard form
7 x 10^-5 x 6.3 x 10^3
Multiply the whole numbers and add the exponents
7 x 6.3 x 10^-5 + 3
44.1 x 10^-2
There are 44.1 x 10^-2 grains of sand in 6300kg
Answer:
Step-by-step explanation:
Males proportion 
Females proportion 

(one tailed test for comparison of proportions)
Test statistic = 
=-1.3641
Here p= combined proportion = 
p value = 0.0869
Since p >0.05, accept null hypothesis.
The evidence does not suggest a higher proportion of females are annoyed by this behavior
Answer:
5(6)+3(4.5)- 6(2)= 31.5
Step-by-step explanation: