Answer:
C
Step-by-step explanation:
4 by 5
10 by 2
20 by 1
You can place two squares side by side
Technically a square is a rectangle so that counts as a rectangle
Let's begin by listing out the information given to us:
There are four students: n = 4
Number of students to be selected: r = 2
To calculate the combination of 2 students to be chosen, we use:

Therefore, there 12 possible combinations from these
P=18
Angle e and c are the same because they are opposite interior angles. Therefore you can set it up in an equation like: 117=5P+27 and solve.
117=5P+27 you need to subtract 27 from both sides
90=5P you need to divide both sides by 5 to get
P=18
Answer: A
Step-by-step explanation: Type 1 error is to reject the null hypothesis ONLY IF p is less than 10. you would not reject the null hypothesis if the alternative hypothesis is true... you would "fail to reject the null hypothesis".