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3 years ago

I don’t understand what it’s asking me can someone explain without giving me the answer?

Mathematics

2 answers:

larisa86 [58]3 years ago

7 0

Basically it's just asking you to draw a picture with an explanation of what you drew or why you drew it.

Hope that this helped. (;

katrin2010 [14]3 years ago

7 0

With a diagram is most likely referring to drawing a picture to represent it, i.e. if you had 1/4, drawing a box, dividing it into fourths and filling in one of the fourths

With words is likely asking you to write out the fraction in words, i.e. "One Fourth" rather than 1/4.

I'm not quite sure, that wording is really cryptic, but those are my best guesses.

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2.) What is the value of V78 to the nearest tenth?

DENIUS [597]

Answer:

80.

Step-by-step explanation:

When multiplying if the tenth place is " 7" then we look " next door" which is the ones and 8 is great then 5 so we count to from 8 to see when the next number ending in 0 would be in this case its 80. ( if the number is 4 or less count backwards to a number ending with 0 which in that case would have been 70 ) but the answer is 80.

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2 years ago

What’s 2 3/4 divided by 2??

Alex17521 [72]

Answer: 1.375

Step-by-step explanation:

Im not good at it, but this may be right?

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3 years ago

Read 2 more answers

(2t–3x)4 expand using binomial theorem

STatiana [176]

639293!47,behdjdkevejskksnsbwjajMsbdhcifmensbjxocnfndoxold

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2 years ago

PLEASE TRY TO HELP !

Rufina [12.5K]

Answer:

the photo is a little blurry I cannot answer the question unfortunately sorry

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2 years ago

A survey was conducted that asked 1003 people how many books they had read in the past year. Results indicated that x overbar eq

Sergio [31]

Answer:

The 99% confidence interval would be given (11.448;14.152).

Step-by-step explanation:

1) Important concepts and notation

A confidence interval for a mean "gives us a range of plausible values for the population mean. If a confidence interval does not include a particular value, we can say that it is not likely that the particular value is the true population mean"

$s=16.6$ represent the sample deviation

$\bar X=12.8$ represent the sample mean

n =1003 is the sample size selected

Confidence =99% or 0.99

$\alpha=1-0.99=0.01$ represent the significance level.

2) Solution to the problem

The confidence interval for the mean would be given by this formula

$\bar X \pm z_{\alpha/2} \frac{s}{\sqrt{n}}$

We can use a z quantile instead of t since the sample size is large enough.

For the 99% confidence interval the value of $\alpha=1-0.99=0.01$ and $\alpha/2=0.005$ , with that value we can find the quantile required for the interval in the normal standard distribution.

$z_{\alpha/2}=2.58$

And replacing into the confidence interval formula we got:

$12.8 - 2.58 \frac{16.6}{\sqrt{1003}}=11.448$

$12.8 + 2.58 \frac{16.6}{\sqrt{1003}} =14.152$

And the 99% confidence interval would be given (11.448;14.152).

We are confident that about 11 to 14 are the number of books that the people had read on the last year on average, at 1% of significance.

3 0

3 years ago