Trapezoid- 45 square units
Triangle- 27 square units
Parallelogram (to the right figure):
30 square units
MARK ME BRAINLIESTT PLEASE
The mean and standard deviation of the scores are 75 and 9.5 respectively.
The z-score is a means to find the probability of getting a particular score. This is calculated to be:

where x is the score, μ is the mean, and σ is the standard deviation.
To be a part of the top 2.5 percent, the probability is:

The z-score for this probability, that is, P
Answer:
40 marbles
Step-by-step explanation:
because for every one blue marble there are two white marbels so if u time 2 by 20 it's 40
The given expression is

We just have to divide by 2

<h2>Hence, the solution is all real numbers less than 10.</h2>