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3 years ago

A quarter weighs about 0.025 pound.what is this weight written in scientific notation

Mathematics

1 answer:

Mkey [24]3 years ago

8 0

0.025 = 2.5 x 10⁻²

Regrdez, SVP.

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G= {(-5,5), (6, 8), (-5, -5)}<br> What is the domain and range

blagie [28]

Answer:

I'm pretty sure domain is x and range is why which would mean that:

domain: -5,6

range: 5,8,-5

Step-by-step explanation:

Hope this helps:)...if not then sorry for wasting you time and I hope you find the right answer and may God bless you:)

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2 years ago

After calculating the sample size needed to estimate a population proportion to within 0.05, you have been told that the maximum

Svetlanka [38]

Answer: 40000

Step-by-step explanation:

The formula to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$ , where p is the prior estimate of the population proportion.

Here we can see that the sample size is inversely proportion withe square of margin of error.

i.e. $n\ \alpha\ \dfrac{1}{E^2}$

By the equation inverse variation, we have

$n_1E_1^2=n_2E_2^2$

Given : $E_1=0.05$ $n_1=1000$

$E_2=0.025$

Then, we have

$(1000)(0.05)^2=n_2(0.025)^2\\\\\Rightarrow\ 2.5=0.000625n_2\\\\\Rightarrow\ n_2=\dfrac{2.5}{0.000625}=4000$

Hence, the sample size will now have to be 4000.

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3 years ago

Find all real zeros of the function.<br> F(x)=-5x(x^2-25)(x-7)

Rudiy27

Answer:

x - intercepts: (-5,0), (5,0), (7,0)

I'm not sure if you would count these, but x and y also have the intercept of (0,0).

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3 years ago

Please i will give brainlist

ElenaW [278]

Answer:

the second answer

y=1/2x+3/4

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3 years ago

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Liono4ka [1.6K]

Answer:

1/2

Step-by-step explanation:

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3 years ago