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kozerog [31]
2 years ago
9

Sam hiked 4.5 km along a straight bush track, and then turned 40° and walked a further 3.8 km in a straight line.

Mathematics
1 answer:
erica [24]2 years ago
3 0
Answer is 8.3 hope you is happy
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The owner of a fish market has an assistant who has determined that the weights of catfish are normally​ distributed, with mean
LiRa [457]

Answer:

P(X\geq 3.4)=0.0228

Step-by-step explanation:

Given the mean is 3.2, standard deviation is 0.8 and the sample size is 64.

-We calculate the  probability of a mean of 3.4 as follows:

#First determine the z-value:

z=\frac{\bar X -\mu}{\sigma/\sqrt{n}}\\\\=\frac{3.4-3.2}{0.8/\sqrt{64}}\\\\=2.000

#We then determine the corresponding probability on the z tables:

Z(X\geq 3.4)=1-P(X

Hence, the probability of obtaining a sample mean this large or​ larger is 0.0228

8 0
3 years ago
0.357 round to 2 decimal places
Andrej [43]
.36. Just put that in
7 0
3 years ago
Read 2 more answers
Need help ASAP! PLSS
Lady bird [3.3K]

Answer:

i think u add them

Step-by-step explanation:

9+ 7+16=32

6 0
3 years ago
In the recent year 18.2% of all registered doctors were females. If there were 57,000 females registered doctors that year what
harina [27]
Your equation is

0.194*x = 43400,

where x is the unknown total number of registered doctors, which is under the question.

Solve the equation to get the answer:

x = 43400/0.194 = 223711 registered doctors.
4 0
2 years ago
Here are two number machines, A and B.
Troyanec [42]

Answer:

Step-by-step explanation:

We can write them both like functions like this

Where

x=input

A=Output A

B=Output B

We want the output of A 3 times the output of B this can be written like this:

we replace with the functions

we solve for x

The output that makes the out put of A 3 times teh output of B is

7 0
2 years ago
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