3779.309 is the answer....
Yes
It can easily be evaluated by testing:
24/2=12
60/5=12
Both equal the same digit, which means they are proportional :)
One solution.
They have different slopes and therefore must have one solution.
Answer: 5.37
Step-by-step explanation:
Let x = ACT scores.
Given: ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately normal.
i.e. P(X>28)=0.09 (i)
Now,
(ii)
One -tailed z value for p-value of 0.09 =1.3408 [By z-table]
From (i) and (ii)

Hence, the standard deviation = 5.37
Step-by-step explanation:
Circumference (C):

Area (A):
