Let success be that a plant dies in the winter and failure be that a plant survives the winter, then
p = 0.05, q = 1 - 0.05 = 0.95
a.) P(1 or more will not survive the winter) = 1 - P(all will survive the winter) = 1 - P(0) = 1 - 10C0 (0.05)^0 (0.95)^10 = 1 - 1(1)(0.5987) = 0.4013
b.) P(all will survive) = P(none will die) = P(0) = 0.5987
Answer:
1276.19553 
Step-by-step explanation:
First, find height using Pythagoras thorem.
a=
a=15.61
Then use the formula to find the surface area of a cone.
π•12.5•(12.5+
)=1276.19553
The answer is 6, because its the number that is being multiplied by the variable...
Y = 10x + 400
y = 30x + 300
10x + 400 = 30x + 300
20x = 100
x = 5 months(answer to first question)
y = 10(5) + 400
y = 450
After 5 months, Tina will save $450 with either option.
