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3 years ago

Write this ratio as a fraction in the simplest form 3 feet to 63 inches

Mathematics

1 answer:

Andrei [34K]3 years ago

3 0

Answer:

4:7

Step-by-step explanation:

Okay, so first convert the feet to inches so 3x12=36. So the it's 36:63. Then if you simplify it you get 4:7.

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Find the margin of error for a 90% confidence interval when the standard deviation is LaTeX: \sigma= 50????=50 and LaTeX: n = 25

Murrr4er [49]

Answer:

The margin of error for a 90% confidence interval is 16.4

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 25

Standard deviation = 50

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

Margin of error =

$z_{critical}\times \dfrac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$1.64\times \dfrac{50}{\sqrt{25}} = 16.4$

Thus, the margin of error for a 90% confidence interval is 16.4

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=26%20-%202%2810%20-%201%29%20%2B%20%283%20%2B%204%20%5Ctimes%2011%29" id="TexFormula1" title="

goldfiish [28.3K]

$26-2\left(10-1\right)+\left(3+4\cdot 11\right)$

$26-(2)(9)+3+(4)(11)$

$26-18+3+(4)(11)$

$8+3+(4)(11)$

$8+3+44$

$8+47$

$55$

"55 is correct answer".

Hope this helps!

Thanks!

-Charlie

5 0

3 years ago

Can Someone please help me out with this problem

ikadub [295]

Step-by-step explanation:

find the area as if it was a rectangle so do 14x12 then subtract the area of half a circle with a diamater of 12

8 0

2 years ago

Out of the thirty

labwork [276]

Answer:

She answered 76 percent of the question correct.

Step-by-step explanation:

Convert fraction (ratio) 23 / 30 Answer: 76.6%

8 0

3 years ago

HELP ME PLEASE LOVE U <33

vazorg [7]

i think the answer is 56.55

3 0

3 years ago