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3 years ago

Find the given elements of matrix D:

Mathematics

1 answer:

kotegsom [21]3 years ago

5 0

wait what i dont understand

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How many hundredths are in 2 tenths? I don't get it does it mean decimal or no decimal<br>

AlladinOne [14]

Answer:

IT is talking about decimals

Step-by-step explanation:

For example 1.25 the 2 is in the tenths place and the 5 is in the hundreths place.

8 0

3 years ago

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Choose the answer that shows exponential decay?*

Vlad1618 [11]

I’m not sure what that is

6 0

3 years ago

Maxine picked 7 1/4 pounds of blueberries and kodi picked 3 3/4 pounds of blueberries thy want to package into 1 1/2 to sell at

Mariulka [41]

7.25+3.75=11 pounds total
11/1.5= 7 plus .5 pounds left
So the greatest number they can make is 7

6 0

3 years ago

HELP PLEASE:

Anon25 [30]

Answer: Mean of the sample proportion = 74.4

Standard deviation of the samnple proportion is 5.32.

Step-by-step explanation:

Given : A random sample of 120 is taken from a population of 10000.

Let n = 120

Also, from previous survey, it is believed that 62% of the population has an Instagram account.

i.e, population proportion : p = 0.62

Now , the mean of the sample proportin would be :

$\text{Mean}=\mu_{\hat{p}}=np\\\\=120\times0.62=74.4$

i.e. Mean of the sample proportion = 74.4

The standard deviation of the samnple proportion would be :

$\text{standard deviation}=\sigma_{\hat{p}}=\sqrt{np(1-p)}\\\\=\sqrt{120(0.62)(1-0.62)}\\\\=\sqrt{28.272}\\\\=5.31714208951\approx5.32$

Thus , the standard deviation of the samnple proportion is 5.32.

8 0

3 years ago

3/2+×= -7/2 i. dont know how to solve for x i dont know the answer

GuDViN [60]

So you have to get x by itself first, but you have to do the same thing on both sides in order for it to stay equal.
3/2*2/3+x=-7/2*2/3
6/6+x=-14/6
x=-14/6
Simplify.
x=-7/3 or -2 1/3

Hope this helps! If you have any questions, just ask!

3 0

4 years ago