Answer:
=0.1587 or 15.87%
So option A is correct answer so 15.87% of the invoices were paid within 15 days of receipt.
Step-by-step explanation:
In order to find the percent of the invoices paid within 5 days of receipt we have to find the value of Z first.

where:
X is the random varable which in our case is 15 days
u is the mean or average value which is 20 days
S is the standard deviation which is 5 days

Z=-1.0
We have to find Probability at Z less than -1
P(Z<-1.0) which can be written as:
=1-P(Z>1.0)
From Cumulative distribution table:
=1-(0.3413+0.5)
=0.1587 or 15.87%
So option A is correct answer so 15.87% of the invoices were paid within 15 days of receipt.
Answer:(–8, 8) and (2, 2) (–2, 1) and (3, –2)
Step-by-step explanation:
Answer:
16x^4 - 8x^2 y^2+y^4
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
4-2=2
2x9=18
18+6=24
24/4=6
6+2=8
=8
If x represents the number of flower baskets, then, just as you showed, the answer cant be either a or b because store A doesnt charge $15 per flower basket but rather $15 for delivery. To see whether it is c or d, simply use the same number to represent the number of flower baskets in both inequalities. The easiest would be 1 because then youre multiplying - in the case of store A - 19.25 (how much each flower basket costs) times 1 (the total number of flower baskets) and then adding 15 (the cost of delivery) which is a total of 34.25. For store B it would be 17.5 times 1 plus 30 which equals 47.5. Therefore, the inequality for store A is less than that of store B, so D would be the answer. (i hope that sort of makes sense sjdjdjjs)