Answer:
2/15
Step-by-step explanation:
2 green pens, 3 blue pens, 4 red pens, and 1 black pen =10 pens
P(red) = red/total = 4/10 = 2/5
Keep the pen
2 green pens, 3 blue pens, 3 red pens, and 1 black pen =9 pens
P(red) = red/total = 3/9 = 1/3
P(red,red) = 2/5 * 1/3 = 2/15
Answer:
see explanation
Step-by-step explanation:
Consider the left side
1 + cot²A
= 1 + 
= 
= 
= cosec²A
= right side, thus proven
Answer:
15
Step-by-step explanation:
in 20 seconds, the zombie can walk 12 ft. in order to find 25, simply divide 6ft and 10 seconds to get 3ft and 5 seconds