3 years ago

What is a fraction box

Mathematics

1 answer:

vichka [17]3 years ago

3 0

I don't know exactly what a fraction box is sorry

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The formula below is used to convert a temperature in degrees clesius,C ,to a temperature in degree fehrenheit,F.

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Answer:

59degrees farenheit

Step-by-step explanation:

Just replace celcius with 15 and solve.

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What sample size is needed to give a margin of error within plus-or-minus 5% in estimating a population proportion with 90% conf

VARVARA [1.3K]

Answer: 271.

Step-by-step explanation:

When the prior population proportion of success is not available, then the formula to find the sample size is given by :-

$n=00.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Significance level : $\alpha: 1-0.90=0.1$

By using the standard normal distribution table ,

Critical value : $z_{\alpha/2}=1.645$

Margin of error : $E=0.05$

Then , the required minimum sample size will be :-

$n=0.25(\dfrac{(1.645)}{0.05})^2=270.6025\approx271$

Hence, the required minimum sample size is 271.

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3 years ago

The length of a photograph is 3 cm less than twice the width. The area is 54 cm^2. Find the dimensions of the photograph?

11Alexandr11 [23.1K]

Length = 9, width = 6.

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3 years ago

PLEASE ANSWER PROBLEM IN THE IMAGE PLEASE GIVE EXPLANATION IF YOU DON’T WANT TO GIVE A EXPLANATION DON’T ANSWER WILL GIVE BRAINL

motikmotik

Answer:

Step-by-step explanation:

We can determine the number of different sets of reports by determining how many possible options are available per subject and then multiplying them.

There are 5 total options for geography, 3 for English, 1 for sciences, and 2 for maths. Multiplying these gets us 30.

#LearnWithBrainly

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2 years ago

Read 2 more answers