Answer:
The area of the polygon is 
Step-by-step explanation:
Sketch the polygon to obtain the figure in the attachment.
The polygon can then be divided into a rectangle and a triangle.
The area of the polygon

We use the absolute value method to find the lengths




Answer:
The probability that the two rats are from the first litter is 14.28%, and the probability that the two rats are from the second litter is 34.28%.
Step-by-step explanation:
Since a cage holds two litter of rats, and one litter comprises one female and five males, while the other litter comprises seven females and two males, and a random selection of two rats is done, to find the probability that the two rats are from the same litter the following calculation must be performed:
6/15 x 5/14 = 0.1428
9/15 x 8/14 = 0.3428
Therefore, the probability that the two rats are from the first litter is 14.28%, and the probability that the two rats are from the second litter is 34.28%.
Answer:
-40
Step-by-step explanation:
Work backwards
4 * -7 = -28
-28 - 12 = -40
Try suggested solution, note, the answers are marked with green colour.
It would be 200+9+0.1+0.006.