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Savatey [412]
3 years ago
10

What’s the missing side length 28 21

Mathematics
2 answers:
Sergio039 [100]3 years ago
6 0

Answer:

HOW ON THE WORLD WE SUPPOSED TO ANSWER DIS ?!?!?!

Step-by-step explanation:

Sever21 [200]3 years ago
4 0
Is there a shape or pic you can show.
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How do I do #38? And do I have 35,36,37 correct? Because I rounded to the nearest 10th.
maria [59]

Since perimeter means all around it just means adding all the sides. Because you are given length and width your equation would then be, " (5)+(5)+(2x=14)+(2x+14). Now since area means length times width you would multiply length times width. Since x=7 you would multiply 7x5 and the area equals 35. Questions 35-37 are indeed correct. You're smart ! By the way I'm twelve so hopefully you found this helpful.

6 0
3 years ago
Graph the inequality 3x+y≥-7
Musya8 [376]

Answer:

x≥ -7 x -y/3

Step-by-step explanation:

3 0
3 years ago
A new cereal will be advertised in 30-second spots during a morning TV show for children. The ad will run over the next 60 days.
Arturiano [62]
The campaign will cost $216,000
7 0
3 years ago
The daily revenues of a cafe near the university are approximately normally distributed. The owner recently collected a random s
lbvjy [14]

Answer:

The sample size to obtain the desired margin of error is 160.

Step-by-step explanation:

The Margin of Error is given as

MOE=z_{crit}\times\dfrac{\sigma}{\sqrt{n}}

Rearranging this equation in terms of n gives

n=\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2

Now the Margin of Error is reduced by 2 so the new M_2 is given as M/2 so the value of n_2 is calculated as

n_2=\left[z_{crit}\times \dfrac{\sigma}{M_2}\right]^2\\n_2=\left[z_{crit}\times \dfrac{\sigma}{M/2}\right]^2\\n_2=\left[z_{crit}\times \dfrac{2\sigma}{M}\right]^2\\n_2=2^2\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2\\n_2=4\left[z_{crit}\times \dfrac{\sigma}{M}\right]^2\\n_2=4n

As n is given as 40 so the new sample size is given as

n_2=4n\\n_2=4*40\\n_2=160

So the sample size to obtain the desired margin of error is 160.

4 0
3 years ago
PLEASE ANSWER.<br> ill mark most brainliest.
yKpoI14uk [10]

Answer:

the answer is C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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