Answer:
£837.5
Step-by-step explanation:
If she has 50 m² and it costs £16.75 for every m² of concrete, 50 × 16.75 = £837.5.
Answer:
Step-by-step explanation:
Given that a restaurant chef prepares a tossed salad containing, on average, 5 vegetables per day.
We can assume the number of vegetables used by the chef per day is
Poisson with parameter = mean = 5
We are to find the probability that the salad contains more than 7 vegetables on i) a given day and on ii)3 of the next 6 days?
a) P(no of vegetables >7) = 1-F(7) = 1-0.8666
=0.1334
b) For 6 days we can say each day is independent of the other
Prb( veg >3) for 6 days
= P(veg>3)^6
![=(1-0.2650)^6\\=0.1576](https://tex.z-dn.net/?f=%3D%281-0.2650%29%5E6%5C%5C%3D0.1576)
Combine like terms (4x+6)(2x-5)
foil 8x^2-20x+8x+1
set equal to zero and use quadratic formula
x=23/16 and x=1/16
Answer:
9
Step-by-step explanation: