Thank you guys, although I couldn't tell what grammar edits you made though...
Why 5-x marbles? Is it because that guaruntees martin will choose 4, 3, 2, or 1 marbles?
Yes agreed!! thats why Im confused... The answer was apparently 3 but I don't know why.
2x + 8x2 + 9 - (4 - 2x - 8x2)
There is a negative 1 before the parantheses
2x + 8x2 + 9 - 4 + 2x + 8x2
Which simplifies to
16x2 + 4x + 5
Good job Power27!
How were able to decipher the picture code?
Answered here
This question has been answered here
Ignore the 57 degree angles
Angle W and the 87 degree angle add up to 180
180 - 87 = 93
Angle W is 93 degrees
Angle V and W are congruent
Angle V is 93 degrees
Angle V and X are supplementary
So angle x is 180 - 93 = 87 degrees
Good job, Power27!
Yes! This problem utilizes the Pigeon Hole Principle.