11 nCr 3 plugged in a calculator will equal 165 Combinations/Positions
Probably d as the the temperature outside is unpredictable and the we know the time is always going up
Y = -x/5 I believe.
The negative reflects over the y-axis
and the coefficient 1/5 stretches
Answer:
840cm^2
Step-by-step explanation:
Volume: Area of cross section x length
Area of cross section:(15 x 8 + 4x 5 )
length: 6
So volume:
(15 x 8 + 4x 5 ) x 6 = 120 + 20 X 6 = 140x6 = 840cm^2.
Hope this helps.
Good Luck