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2 years ago

Melanie shows Maka the pillow she just made. It cost her $5.04 for the fabric. This fabric

Mathematics

2 answers:

maks197457 [2]2 years ago

6 0

Hey I don’t know this but I have got to get a good start up bc I have to

svetlana [45]2 years ago

3 0

I don’t really know hahhahahahhahahhahah

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Help (100 + 650) - (2x 300) ??

Kipish [7]

It’S 750-600 this the answer

5 0

3 years ago

Read 2 more answers

Express the confidence interval

marissa [1.9K]

Answer:

$\hat p = \frac{0.244+0.326}{2}=0.285$

$ME = \frac{0.326-0.244}{2}=0.041$

$0.285 \pm 0.041$

Step-by-step explanation:

For this case we have a confidence interval given as a percent:

$24.4\% \leq p \leq 32.6\%$

If we express this in terms of fraction we have this:

$0.244 \leq p \leq 0.326$

We know that the confidence interval for the true proportion is given by:

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

And thats equivalent to:

$\hat p \pm ME$

We can estimate the estimated proportion like this:

$\hat p = \frac{0.244+0.326}{2}=0.285$

And the margin of error can be estimaed using the fact that the confidence interval is symmetrical

$ME = \frac{0.326-0.244}{2}=0.041$

And then the confidence interval in the form desired is:

$0.285 \pm 0.041$

7 0

3 years ago

E varies directly with the square root of C. If E=40 when C=25 find: E when C= 49

tiny-mole [99]

Answer: E = 56

Step-by-step explanation:

E is proportional to √C

To remove proportionality, introduce a constant (k).

E = k × √C

From question,

E = 40 and C = 25

So,

40 = k ×√25

40 = k × 5

k = 8

Now,

C = 49

k = 8

E = ?

E = k√C

E = 8 × √49

E = 8 × 7

E = 56

6 0

3 years ago

Read 2 more answers

How old am I if 500 reduced by 2 times<br> my age is 322?

Yuliya22 [10]

Answer:

You are 89 years old.

Step-by-step explanation:

First I subtracted 322 from 500 which got me 178. Then I finally did 178 divided by 2 which got me 89.

Hope this helps you! :)

5 0

2 years ago

Find the probability of the event. The probability of not choosing a black shirt.

Nata [24]

Answer:

10 of 1

Step-by-step explanation:

just think about it

8 0

3 years ago