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3 years ago

Please help if you can, thank you

Mathematics

2 answers:

Mariulka [41]3 years ago

7 0

Answer:

1.11333333

Step-by-step explanation:

I calculated using Symbolab

sorry if its wrong

adell [148]3 years ago

6 0

I think that the answer is 2x over 3y

Top left is you answer

7 0

3 years ago

Floor is square with side length 12 feet. Kim wants the tiles to be squares with side length 2 feet. How many tiles does Kim nee

Varvara68 [4.7K]

Answer:

6 tiles

Step-by-step explanation:

Because 2,4,6,8,10,12

6 0

3 years ago

Need help with this

blondinia [14]

Answer:

r = √(3V/(πh))
r ≈ 1.78 cm

Step-by-step explanation:

Multiply by the inverse of the coefficient of r², then take the square root.

$V=\dfrac{1}{3}\pi r^2h\\\\V=\dfrac{\pi h}{3}r^2\\\\r^2=\dfrac{3V}{\pi h}\\\\\boxed{r=\sqrt{\dfrac{3V}{\pi h}}}$

For V=50, h=15, this is ...

${r=\sqrt{\dfrac{3(50)}{\pi(15)}}=\sqrt{\dfrac{10}{\pi}}\approx\boxed{1.78\quad\text{cm}}$

4 0

3 years ago

Howard downloaded 6 more songs than Erin. Lee downloaded 3 more than Howard. Lee downloaded 16 songs.How many songs did Erin dow

koban [17]

Erin downloaded 7 songs

7 0

3 years ago

Arada [10]

Using a confidence interval of proportions, it is found that the correct statement is given by:

D a confidence interval for estimating the cricket's true probability of landing on its feet is more narrow after the final 10 jumps than it was before the final 10 jumps.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

The margin of error is given by:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

The margin of error is inversely proportional to the square root of the sample size, hence, the higher the sample size, the narrower the interval is, hence option D is correct.

More can be learned about a confidence interval of proportions at brainly.com/question/25890103

7 0

2 years ago