Answer:
Margin of error = 0.01344
Step-by-step explanation:
Margin of error = critical value × standard deviation.
critical value for 95% confidence interval = 1.96
Standard deviation = √[(p)(q)/n]
p = 0.4, q = 1 - p = 1 - 0.4 = 0.6, n = 5100
Standard deviation = √[(0.6×0.4)/5100] = 0.00686
Margin of error = 1.96 × 0.00686 = 0.0134
Principal, P = $80
monthly interest, i = 5%/12 = 0.05/12
Number of periods, n = 3*12 = 36
Interest earned after three years,
I = P((1+i)^n-1)
=80((1+0.05/12)^36-1)
=12.92 (to the nearest cent.
Not too sure but I think you’ll have to find out the amount of boys in the class then add that number to the amount of girls to get the answer.
Answer:
308025 times larger
Step-by-step explanation:
The polygon BBB is a scaled copy of polygon A using a scale factor of 555.
This means for every length of polygon AAA, polygon BBB is 555 times larger.
Recall area is in 
.
Area of polygon BBB = (scale factor)^2 multiplied by area of polygon AAA
Since the scale factor is 5
Area of polygon BBB = (555^2) * Area of polygon AAA
Area of polygon BBB = 308025 times the area of polygon AAA
Hope I have been able to help.
21 I think I'm not sure tho
