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3 years ago

Can u guys help me with the blank space what's the answer!?

Mathematics

2 answers:

Artemon [7]3 years ago

7 0

First you multiply 72 by 5 which you get 360

And then you divided it by 12 which you get 30

So the n=30

elixir [45]3 years ago

4 0

N =30 hope this helps

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A car travels 600 km in 6 hours. at what rate of speed is the car traveling?

rusak2 [61]

Step-by-step explanation:

100Km/hours......V/T

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3 years ago

A researcher believes that 12% of a simple random sample of adults will be able to identify a Toyota Scion by brand and model na

DochEvi [55]

Answer: 650

Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

$n=p(1-p)(\dfrac{z^*}{E})^2$

, where p= population proportion

E= margin of error

z* = Critical value.

Let p be the proportion of adults able to identify a Toyota Scion by brand and model name.

As per given , we have

p = 12%= 0.12

E= 2.5%=0.025

Critical value for 95% confidence interval : z* = 1.960 [By z-table ]

Then, the required sample size = $n=(0.12)(1-(0.12))(\dfrac{1.96}{0.025})^2$

$n=(0.1056)(78.4)^2$

$n=(0.1056)(6146.56)$

$n=649.076736\approx650$

Thus , the required sample size = 650

6 0

3 years ago

9x^3y^6/xy^6 Solve using only positive exponents

DedPeter [7]

Look at the attached picture

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3 years ago

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inn [45]

I agree with your choice

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3 years ago

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180 minus what = 45 i really need this answer thank you

LuckyWell [14K]

Answer: 135

Step-by-step explanation: All you need to do is 180-45=135.

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3 years ago

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