We know the number of all ways to take one marble and then take another marble is: 10x9=90
The first time, Jamie wants to pick a white and the ways is: 3
Now we have only 9 marble with 2 white and 7 blues, she has 7 ways to take a blue . So, she has 3x7=21 ways to take what she wants.
And we do the division 21:90=7/30. and that is the answer
Answer:
they are perpindicular because they intersect at a right angle
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Rectangular Pyramid
A is 0.025 from what i worked out, I hope it is correct :)
