Answer: b, d, e
Trapezoids are quadrilaterals (a shape with four sides) and they have two pairs of sides; one pair are parallel, and the other pair are not.
Picture shown below.
Factoring may be the easiest one
Answer:
The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find M as such

In which
is the standard deviation of the population and n is the size of the sample.

The lower end of the interval is the mean subtracted by M. So it is 1.016 - 0.0310 = 0.985 g/cm²
The upper end of the interval is the mean added to M. So it is 1.016 + 0.0310 = 1.047 g/cm²
The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².
Since the <u>difference between consecutive terms is not constant</u>, the sequence is not arithmetic.
In an arithmetic sequence, the <u>difference between consecutive terms is constant</u>, called common difference d.
A recursive formula is given by:

In which
is the first term.
In this problem:
- The terms are: 100, 135, 149, 165, 188.
- 135 - 100 = 35, 149 - 135 = 14, that is, the differences are not constant, so this is not an arithmetic sequence.
A similar problem is given at brainly.com/question/23901992
The answer is approximately 12.57