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Elden [556K]
3 years ago
12

Solve: 51 ÷ [(-15) + (-2)

Mathematics
1 answer:
kari74 [83]3 years ago
3 0
Dude at the top correct
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The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. based on a large number of obser
Liono4ka [1.6K]
The normal distribution curve for the problem is shown below

We need to standardise the value X=405.5 by using the formula

z-score= \frac{X-Mean}{Standard Deviation}
z-score= \frac{405.5-402.7}{8.8} =0.32

We now need to find the probability of z=0.32 by reading the z-table

Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:

P(Z\ \textgreater \ z)=1 - P(Z\ \textless \ z)

from  the z-table, the reading P(Z\ \textless \ 0.32) gives 0.6255

hence, 
P(Z\ \textgreater \ 0.32)=1-0.6255=0.3475

The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%

7 0
3 years ago
Find the area of a circle with a diameter of 16.
never [62]
The area of the circle should be 201.06
4 0
3 years ago
Is my answer correct
Vlad [161]
No because its explain how much cumulative tip total on day 5 so the answer is D.400
8 0
3 years ago
PLEASE HELP!!!!
Allushta [10]
Intersection (repeated element in the set)

A={-9,0,5}
B={0,2,5,8}
C={-9,2,5}

Ans: C, {5}

*In set B and C, element 2 was repeated but not for set A.
6 0
3 years ago
Read 2 more answers
Disney World in Orlando Florida is the most popular theme park in the world. More than 39 million people visit every year. It’s
sesenic [268]

Answer:

one billion eight hundred ninety million three hundred eighty thousand eight hundred

Step-by-step explanation:

43.12*43.84

8 0
3 years ago
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