20 total marbles....7 are green
probability on first draw is 7/20...and since the marble was not replaced, the probability on the second draw is 6/19. And since they cant happen at the same time, we multiply
7/20 * 6/19 = 42/380 which reduces to 21/190
Answer:
Step-by-step explanation:
C
For Perimeter you add all the sides of the figure and the total is your perimeter. For Area you multiply the length times the width.
Answer: For triangle: a line starting on the left corner going to the middle of the triangle. Hopefully that helps for the blank question
