Find the lateral area and surface area of the cylinder, Round to the nearest tenth 3 cm 6 cm
1 answer:
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Answer: (0.120,0.160)
Step-by-step explanation:
Given : Sample size :
Number of disks were not defective =701
Then , the number of disks which are defective =
Now, the proportion of disks which are defective :
Significance level :
Critical value :
The confidence interval for population proportion is given by :-
Hence, the 90% confidence interval for the population proportion of disks which are defective = (0.120,0.160)
Answer: DA:FA=KE:EF, DF:DA=KF:KE and FA:DA=EF:KE are correct.
Explanation: Since, and
are similar triangles.
Because, and
(because EA and KD are parallels. And,
is common angle for these triangles.
Therefore, according to the property of similar triangles.
FE:EK= FA:AD, FE:FK=FA:FD and DF:DA=KF:KE .
Thus, first, second and third options are correct.