Remark
Many calculators have a key that will do this in one step. Mine is one of them. So let's start with the answer and then we'll do it the long way.
9C3 = 84. You put it into your calculator as 9 2nF nCr 3 =
Solution

3*4*7 = 84 which is what you set out to show.
Answer:
Step-by-step explanation:
3 coins make for 8 possible outcomes {HHH,HHT,HTH,THH,HTT,THT,TTH,TTT}
4 Possible outcomes conatin 2 or more heads.
Probability (At least 2 Heads) = Favourable outcomes/Total possible outcomes
= 4/8 = 1/2 = 0.5 (50%)
1 bushel = 186 heads of lettuces
multiply each side by 6
6 bushels = 1,116 heads of lettuces
The farmer picked 1,116 heads of lettuces
Answer:
$ 800
Step-by-step explanation:
Parking slot is in the shape of parallelogram.
base = 3 m
Height = 6 2/3 m
Area = base * height

Cost of paving the parking spot = 20 * 40
= $ 800
Answer:
3(8) + 3d
24+3d
Step-by-step explanation:
I am not sure which two answer choices you have provided for you but these two expressions work for this problem