Answer:
Step-by-step explanation:
Given
Required
Determine the missing angles
Since AB = AD, then:
--- Base angles of an isosceles triangle
Hence:
--- angles in a triangle
Collect Like Terms
--- angle on a straight line
Since ABC is isosceles, then:
--- base angle of isosceles
Lastly:
<em>See attachment</em>
F(x) = 7(x-1)+8
F(1) = 7(1-1)+8
F(1) = 7(0)+8
F(1) = 8
They estimated it by the last digit in 68,658. Since 8 is over 5, you round it up to 70,000. Another way to put it is that 68,658 is closer to 70,000 than it is to 68,000. Does that make sense?
Answer: A
Step-by-step explanation: when Constructing a confidence interval, it is important to take note of the margin of error which is given by the formulae below
Margin of error = critical value × σ/√n.
Where n is the sample size.
As we can see that the critical value is a constant and the population standard deviation.
Hence there is an inverse relationship between margin of error and sample size, which implies that a large sample size produces a small margin of error.
If the margin of error is small, it means the sample size will increase the like hood that the sample is a good representation of the population.