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Yakvenalex [24]
3 years ago
11

The weight of fish in Lake Paradise follows a normal distribution with mean of 7.5 lbs and standard deviation of 2.5 lbs. a. Wha

t proportion of fish are between 9lbs and 12lbs? Give your answer to 3 decimal places. b. Alex boasts that he once caught a fish that was just big enough to be in the top 3% of of the fish population. How much did his fish weigh? Give your answer to 2 decimal places. c. If one catches a fish from the bottom 20% of the population, the fish must be returned to the lake. What is the weight of the smallest fish that one can keep? Give your answer to 2 decimal places.
Mathematics
1 answer:
hoa [83]3 years ago
7 0

Answer:

oooooh

Step-by-step explanation:

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can someone please help me out with this problem ? i been trying to do this for like 2 days now and i still don’t get it .. also
kotykmax [81]

Answer:

Step-by-step explanation:

the Pythagorean theorem is

c is the hypotenuse which is the side opposite of the right angle

plug the numbers into the Pythagorean theorem

x^2+(\sqrt{26})^2=13^2

when squaring a square root, just take the number in the radical and get rid of the radical

x^2+26=169

subtract 26 from both sides

x^2=143

find the square root of 143

143 is prime so it can just be written as

x=\sqrt{143}

6 0
3 years ago
On a coordinate plane the coordianits of vertices the and t for a polygon are r(-7,3) and r (3,3) what is the length of side rt
NemiM [27]

The length is 10.


Since the two points share the same y-coordinate, the segment rt is horizontal.


This means that the length of the side is simply the difference (in absolute value) between the x coordinates of the two points.


So, we have


\overline{RT} = |-7-3| = |-10| = 10

6 0
3 years ago
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The vertices of triangle ABC are A(−5, 1), B(−2.5, 7), and C(0, 1). Find the new coordinates of the vertices after the given tra
morpeh [17]

Answer:

(2,0) (0.5,6) (3,0)

Step-by-step explanation:

u know how it's done

4 0
3 years ago
Emma was given 5 seashells. Each week she collected 3 more. Let w be the number of weeks Emma collects seashells and s be the nu
FinnZ [79.3K]

Answer:

s=5+3w independent variable is 5+3w. Dependent variable is s, since the total depends on the amount of weeks plus the 5 seashells from the start. s=5+4(3)=17 s=5+5(3)=20 s=5+6(3)=23 s=5+7(3)=26 s=5+8(3)=29 s=5+9(3)=32 s=5+10(3)=35

Step-by-step explanation:

8 0
3 years ago
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Caroline paid a total of $494 for her gym
kupik [55]
I’ll be $9.50 because you have to -194 by 380 and you get that answer and then divided by 12
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3 years ago
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