Please help me thanks

Mathematics

1 answer:

borishaifa [10]3 years ago

4 0

Answer:

you have it correct, permutation

Step-by-step explanation:

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You order from a catalog the following office supplies: 10 boxes of paper, each box is 6 pounds and 36 boxes of pens, each box w

GalinKa [24]

10 boxes of paper at 6 lbs each = (10 * 6) = 60 lbs
36 boxes of pens at 12 oz each = (36 * 12) = 432 oz.
there are 16 oz in 1 lb....so 432 oz = (432/16) = 27 lbs.
so we have a total weight of (60 + 27) = 87 lbs

shipping charges : $ 12 for first 20 lbs, $ 10 for the next 30 lbs....so thats 50 lbs...leaving 37 lbs at 0.50 per lb = 37(0.50) = $ 18.50

for a total of : 12 + 10 + 18.50 = $ 40.50 <==

3 0

4 years ago

An article suggests that substrate concentration (mg/cm3) of influent to a reactor is normally distributed with μ = 0.50 and σ =

Delvig [45]

Answer:

0.1056 = 10.56% probability that the concentration exceeds 0.60

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 0.5, \sigma = 0.08$