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2 years ago

I feel like crying! why is math so hard???

Mathematics

2 answers:

Sladkaya [172]2 years ago

4 0

Answer:

honestly wish math would just jump off the planet with that fancy ole brown necklace we call a rope.

igor_vitrenko [27]2 years ago

4 0

I feel you LOL I’m struggling with all of my homework

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The U.S. Department of Housing and Urban Development publishes data on the fair market monthly rent for existing one-bedroom hou

Aleksandr [31]

Answer:

$n=(\frac{1.960(80)}{25})^2 =246.73 \approx 247$

So the answer for this case would be n=247 rounded up to the nearest integer

Step-by-step explanation:

We know that the standard deviation is :

$\sigma = 80$ represent the deviation

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =25 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 95% of confidence interval now can be founded using the normal distribution and the critical value would be $z_{\alpha/2}=1.960$ , replacing into formula (b) we got:

$n=(\frac{1.960(80)}{25})^2 =246.73 \approx 247$

So the answer for this case would be n=247 rounded up to the nearest integer

8 0

2 years ago

Morgan needs to order some new supplies for the restaurant where she works. The restaurant needs at least 650 glasses. There are

lukranit [14]

Answer:

43 Sets for 650

Step-by-step explanation:

3 0

2 years ago

Please answer correctly ! Will mark brainliest !!!

Black_prince [1.1K]

Answer:

Step-by-step explanation:

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2 years ago

What is the volume of the cone to the nearest tenth?

NikAS [45]

$V=\dfrac{1}{3}\pi r^2H\\\\2r=22m\to r=11m;\ H=12m\\\\V=\dfrac{1}{3}\pi\cdot11^2\cdot12=\pi\cdot121\cdot4=484\pi\ (m^3)\\\\V\approx484\cdot3.14=1,519.76\approx1,519.8\ (m^3)\\\\Answer:1,520.5\ cm^3$

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2 years ago

How many groups of 12 pound are in 234 pounds?

dolphi86 [110]

Answer:

19.5

Step-by-step explanation:

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2 years ago