Y = -5x - 1
I think that is correct
Step-by-step explanation:
the most common measure of how much sample mean differ from each other is the standard deviation of the sampling distribution of the mean. this standard deviation is called the standard error of the mean

N is the number of leaflets so you just substitute the required number for N.

The cost of printing 2500 leaflets is <span>£</span>7925.
If there are 40 children aged twelve and under and x of them are under three years old, 40 - x aged three twelve years old. From the 92 people that where taken by the company on whale watching trips, 52 are over twelve years old. The equation that best show the total cost, C is
(40 - x)(36) + (52)(48) = C
Rearranging the equation gives,
x = 40 - ((C - 2496)/ 36)
Answer: 27
Explanation:
P = 2(l+w) = 2 · (9 + 4.5) = 27