Answer:
6
Step-by-step explanation: You can set up the equation:
=
You square both sides to cancel out the squares which leaves you with
= n - 4. Then you just solve as normal which ends you up with an answer of 6. You can check this by plugging 6 back into the equation and see that you end up with
on both sides.
Answer:
90 degrees
Step-by-step explanation:
angle ABC is a right angle
Answer:
6/95.
Step-by-step explanation:
Prob(red marble on the first choice) = 4/(10+6+4)
= 4/20
= 1/5.
Prob(green marble on the second draw) = 6/19.
Prob( read then a green)
= 1/5 * 6/19
= 6/95.