Answer:
C
Step-by-step explanation:
Hope this helps!
Find the area of rectangle $BCEF$ . Round the area to the nearest whole number, if necessary.
1 answer:
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The attached image represents the triangle after it has been enlarged
<h3>How to enlarge the triangle?</h3>The given parameters are:
- Scale factor, k = -1/3
- Center, (a,b) = (-1,2)
From the graph, the coordinates of the triangle are:
A = (-4,2)
B = (-4,-4)
C = (-1,-4)
The rule of dilation is calculated using:
So, we have:
A' = (0, 2)
B' = (0, 4)
C' = (-1, 4)
See attachment for the image of the triangle, after it has been enlarged
Read more about dilation at:
#SPJ1
Answer:
Step-by-step explanation:
Given : Sample size : n= 9
Degree of freedom = df =n-1 =8
Sample mean :
sample standard deviation :
Significance level ;
Since population standard deviation is not given , so we use t- test.
Using t-distribution table , we have
Critical value =
Confidence interval for the population mean :
90% confidence interval for the mean value will be :
Hence, the 90% confidence interval for the mean value=