2 years ago

The elves were busy

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

8 0

They planted 714 trees I think because 51 times 14 is 714

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jill is thinking of a new password for her phone. She wants to use the numbers 7, 1, and 8. How many different passwords could s

lara31 [8.8K]

7 1 8 You can also calculate this using the Fundemental Counting Principle, just do 3*2*1 which is 6 passwords
7 8 1
8 1 7
8 7 1
1 7 8
1 8 7

3 0

3 years ago

b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

99% of confidence intervals for mean age of ICU patients

(53.8920 , 61.2079)

Step-by-step explanation:

Explanation:-

Given sample mean $x^{-} = 57.55$

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

Given data standard error = 1.42

99% of confidence intervals for mean is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

Conclusion:-

99% of confidence intervals for mean is determined by

(53.8920 , 61.2079)

5 0

3 years ago

What is the hcf of 600 and 1050

Nata [24]

Step-by-step explanation:

staff of 600 is 300 and the form of 1050 is 525

7 0

3 years ago

_______ will produce a rational answer when multiplied by 0.9

harkovskaia [24]

Answer:

Step-by-step explanation:

A rational number is 9.

When you multiply 0.9x10 you get the sum of 9.

9 is a rational number because it is a perfect square and an integer.

I hope this helps you understand :)

4 0

3 years ago

Read 2 more answers

Need helpp fastt plss will give brainliest to who is correct plss helpp

Juliette [100K]

Answer:

12(3+1)

Step-by-step explanation:

use distributive property to solve

13 times 3 is 36

12 times 1 is 12

so 12(3+1) is equal to 36+12

have a good day :)

8 0

3 years ago

Read 2 more answers