Answer: The correct option is D.
Explanation:
It is given that the triangle ABC is an isosceles triangle. It is also given that the line BD is the median of triangle ABC.
Since DB is median it means point D divides the line AC in two equal parts.
The The median of an isosceles triangle is always a perpendicular bisector of the opposite side. Since the median is perpendicular on side AC, therefore the sides AB and CB are equal.
In triangle ABD and CBD,
.... (Isosceles triangle)
.... (D is midpoint of AC)
.... (Common Side)
Therefore option D is correct.
Answer:
620
Step-by-step explanation:
10³ = 1000
620000 ÷ 1000 = 620
Answer:
Both sides of the first equation are divided by 10 to get the 2nd question so on and so forth...
Answer: Estimation of the solution for 632.97 = 633.
Step-by-step explanation:
Since we have given that
First we estimate nearest to ones ,
So, since it has 9 in tenths place that is greater than 5
So, According to rule of estimation,
1 is getting added to the ones digit
So, after estimation, it becomes 633.
Hence, Estimation of the solution for 632.97 = 633.
Answer:
Since they use random sampling then we can conclude that the two estimators would be unbiased of the real parameter.
So then the best answer would be:
c. The sample proportion, ^p, in either proposal is equally likely to be close to the true population proportion, p, since the sampling is random.
Step-by-step explanation:
For this case we have a first sample size and from this sample we have people who anwswer yes and the estimated proportion of yes is given by:
And let a second sample size and from this sample we have people who anwswer yes and the estimated proportion of yes is given by:
For this case we know that the true proportion is
Since they use random sampling then we can conclude that the two estimators would be unbiased of the real parameter.
So then the best answer would be:
c. The sample proportion, ^p, in either proposal is equally likely to be close to the true population proportion, p, since the sampling is random.