Answer:
482.5 ft^2.
Step-by-step explanation:
The figure can be regarded as a rectangle with a triangle cut out of one corner.
The base of the triangle = 25-20 = 5 in and the height = 20 - 13 = 7 in.
The required area = area of rectangle - area of triangle
= 25*20 - 1/2 * 5 * 7
= 500 - 17.5
= 482.5 ft^2
Answer: 1.509
Step-by-step explanation:
The formula of Margin of Error for (n<30):-
Given : Sample size : n= 22
Level of confidence = 0.99
Significance level : 
Using the t-distribution table ,
Critical value : 
Standard deviation: 
Then, we have
Hence, the margin of error for a 99% confidence interval for the population mean =1.509
Answer:
Step-by-step explanation:
(9^2)^(1/3) = 9^(2 * 1/3) = 9^(2/3)
The smallest country in the world is vatican it is 0.44km^2
Answer: She used 72 inches
Step-by-step explanation:
2 1/2 yds = 90 inches bought
12+6=18 left over
90-18=72
