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3 years ago

A train traveling through Japan has 909090 passengers.

Mathematics

1 answer:

Elenna [48]3 years ago

7 0

Answer:

Step-by-step explanation:

After 81 passengers get off, only 9 passengers remain on the train of the original 90.

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PLEASEEEE HELP !!!!!!!!!!!!!!!!! Abanoub is using a machine to drill for oil that is 535 feet under the ground. The drill he is

In-s [12.5K]

Answer:

a) 15.28 hours

Step-by-step explanation:

535/-35

≈-15.28

but time is always positive so it would take him 15.28 hours

4 0

3 years ago

Jane wants to estimate the proportion of students on her campus who eat cauliflower. after surveying 39 students, she finds 4 w

stellarik [79]

Let $x$ be the number of students who eat cauliflower.

Therefore, $x=4$ .

Let $n$ be the total number of students surveyed.

Therefore, $n=39$

Thus, $\hat p$ $=\frac{4}{39} =0.10256$

Now, for 90% confidence level, from the table we know that $Z=1.645$ .

The formula for the interval range of proportion of students is :

$p= \hat p\pm Z\sqrt{\frac{\hat p(1-\hat p)}{n}}$

Plugging in the values we get:

$p=0.10256\pm 1.645\sqrt{\frac{0.10256(1-0.10256)}{39}}=0.10256\pm 0.04858=0.15114, 0.05398$

Thus, Jane is 90% confident that the population proportion p, for students who eat cauliflower in her campus is between 5.398% and 15.114% (after converting the answer we got to percentage).

7 0

4 years ago

PLA HELP I'LL MARK BRAINLEST

Contact [7]

Answer:

X=55

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Your friend has two jobs. She works a different number of hours each week, so her paycheck for each job is different from week t

Sindrei [870]

I think this is correct:
110 + 75 = 195
195 / 2 = 97.5

I am not fully sure about this, consult your teacher

8 0

4 years ago

What is the answer????

xz_007 [3.2K]

Answer:

36/48 or 6/8 or 3/4 or .75

Step-by-step explanation:

6^2/ [(2+4)*2^3]

6^2/ [ ( 6)*2^3]

36/[(6)*8]

36/48

8 0

3 years ago