4 years ago

Is x^2+y^2= 100 a function

Mathematics

1 answer:

Tju [1.3M]4 years ago

7 0

Answer:

Step-by-step explanation:

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In a study, 42% of adults questions reported that their health was excellent. A researcher wishes to study the health of people

Vikki [24]

Answer: 0.0594

Step-by-step explanation:

Given : The population proportion of adults questions reported that their health was excellent : p = 0.42

Among the 14 adults randomly selected from this area, only 3 reported that their health was excellent.

i.e. Sample size : n= 14

$\mu=np = 14\times0.42=5.88$

$s=\sqrt{np(1-p)}=\sqrt{14(0.42)(1-0.42)}\approx1.85$

z-score : $z=\dfrac{{x}-\mu}{\sigma}$

Put x= 3

$z=\dfrac{3-5.88}{1.85}\approx-1.56$

Then, the probability that only 3 or fewer report having excellent health:-

$P(z\leq-1.56)=0.0593799\approx0.0594$

Hence, the required probability : 0.0594

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3 years ago

Whats 851,708 to the nearest hundred-thousand

inn [45]

Answer:

900,000

Step-by-step explanation:

because when you round number from 1-4 you put it down example: 1223

round to nearest thousand it is 1000 but when 5-9 is higher example: 1566 it is 2000

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3 years ago

Read 2 more answers

Which expression represents B is decreased by 25%?

emmasim [6.3K]

b is decreased by 25% which means there will be (-ve) sign.

$b - 0.25b$

<em>Option 5 is correct!!~</em>

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3 years ago

.01xn=3.792<br> please help me

brilliants [131]

X=379.2/n
N=379.2/x
I hope that helps

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3 years ago

Explain how to find the slope of a vertical line

Elina [12.6K]

Answer:

its undefined because its only going up and never over 1/0

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