So this is like a pie chart or fractions
20 degreees is x% or x/whole parts
circle=360degrees
20/360=2/36=1/18
so the area represents 1/18 of the circle
684=1/18 of circle
multply both sdies by 18
12312=18/18 circle
the area of the circle=12312 yd^2
$6.41
Step-by-step explanation:
$42.75 x 15% (which is .15) = $6.41 is the tip
Answer:
Step-by-step explanation:
1. To calculate the area of the grass you must substract the area of the square and the area of the circle.
2. The area of the square is:
Where 
is one side of the square.
3. You have that:
4. Therefore:
5. The area of the circle is:
6. The are of the grass is:
Answer: Hi am sorry but I can't see so I think you have to zoom in so I could help you.
Step-by-step explanation:
Answer:
Option C. The real effect is 0.1
Step-by-step explanation:
The complete question is
You are interested in the psychological implications of high SES. You read a paper that claims that higher social class people behave more unethically. The paper reports a significant difference in the propensity of high and low SES people behaving unethically. The significance level of this study was 0.05, the ratio of true to false effects in this field is 0.35, but the author was anxious to issue a press release and prepare his TED talk, so power is low, at 0.1. The probability that this study reports a real effect is
A. 0.58
B. 0.95
C. 0.1
D. 0.35
E. 0.41
Solution
Ratio of true to false effects i.e T/F = 0.35
The power of the study indicates the real effect of the study and hence despite the true/false ration being 0.35 and the significance level of study is 0.05, the real effect of the study would be 0.1
Hence option C is correct
