(HELP ASAP!!) An exterior angle of a triangle is 152°. If the non-adjacent angles are congruent, then what are the measures of a
1 answer:
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Answer:
The volume is 1386 cm³ and curved surface area is 396 cm².
Step-by-step explanation:
Given that,
The diameter of a cylinder is 14 cm
Height of the cylinder is 9 cm
We need to find the volume and curved surface area .
If r is the radius, r = 14/2 = 7 cm
Volume of a cylinder is given by :
The curved surface area of the cylinder is given by :
So, the volume is 1386 cm³ and curved surface area is 396 cm².
Answer:
Step-by-step explanation:
Given : Sample size : , which is a small sample (, 30) so we use t-test.
Sample mean :
Standard deviation :
Significance level :
Critical value :
The confidence interval for population mean is given by :-
Hence, a 95% confidence interval for the population mean =