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3 years ago

Simplify 25/81 ……………

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

8 0

Answer:

25/81 is already in the simplest form. It can be written as 0.308642 in decimal form (rounded to 6 decimal places).

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Paula finished the race at 2:14 p.m Beatrice finished the race 22 minutes earlier what time did Beatrice finish the race a 1:54

Digiron [165]

Answer: 1:52 PM

Step-by-step explanation:

PAULA: 2:14PM FINISHED THE RACE

BEATRICE: FINISHED 22 MINUTES EARLIER THEN PAULA

YOU TAKE 2:14PM AND SUBTRACT THE 22 MINS BEATRICE RAN TO GET YOU ANSWER.

SO 2:14 -14 MINS=2:00PM 14+8=22 (THE MINS BETRICE FINISHED)

2:00-8 MINS ( REMAINING FROM THE 22 ) THEN 2:00-8 MINS =1:52

ANSWER:1:52PM

5 0

1 year ago

Please help quick!<br> if u cant read it, i will send it again

Pachacha [2.7K]

Answer:

I can't quite read it.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

please help did I do this right. If you answer I will give the brainliest answer to whoever answers first

ohaa [14]

I think the Samsung TV might have already had 5% off but I don't know if I interpreted the question right or not.

the Sony one says AND 55% off but the Samsung one says WITH 5% off

take that how you want I guess

3 0

2 years ago

Refer to the accompanying TI-83/84 Plus calculator display of a 95% confidence interval. The sample display results from using

Darina [25.2K]

Answer:

[22.57 ± 2.776]

Step-by-step explanation:

Hello!

You have the 95% Confidence Z-interval (21.182;23.958), the mean X[bar]= 22.57 and the sample size n=25.

The formula for the Z interval is

[X[bar] ± $Z_{1-\alpha /2} *( \frac{Sigma}{\sqrt{n} } )$ ]

The value of Z comes from tha standard normal table:

$Z_{1-\alpha /2} = Z_{0.975}= 1.96$

The semiamplitude (d) or margin of error (E) of the interval is:

E or d= (Upperbond- Lowerbond)/2 = (23.958-21.182)/2 = 2.776

[X[bar] ± E]

[22.57 ± 2.776]

I hope it helps!

8 0

3 years ago

Find the value of z.

worty [1.4K]

9514 1404 393

Answer:

Z ≈ 1.25027

Step-by-step explanation:

There is really no substitute for a good probability table, app, or calculator. Any of these, or a spreadsheet, will tell you the value of Z is about 1.25027.

The attachment shows a spreadsheet computation.

8 0

2 years ago