3 years ago

Find the area of a triangle with sides 8 equals 5 b equals 8 and C equals 11

1 answer:

4 0

I round the answer to the second digit and get 18.33

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nexus9112 [7]

Reggie earns $480.70 a week before taxes are taken out.

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4 years ago

mars1129 [50]

360/18=20

So, your answer is 20 unit rate.

Hope this will help you!

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3 years ago

grandymaker [24]

True. No imaginary number is considered "whole", all whole numbers are rational and real.

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3 years ago

ZanzabumX [31]

Answer:

this

Step-by-step explanation:

the number of boys is 52, if there are 26 girls and boys, and theres 26 more boys than girls then the answer is 52

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2 years ago

Marat540 [252]

Answer:

a) P(X≥143)=0

b) This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

Step-by-step explanation:

If we use the normal approximation to the binomial distribution we have the following parameters (mean and standard deviation):

$\mu=np=0.68*206=140.1\\\\ \sigma=\sqrt{np(1-p)}=\sqrt{206*0.68*0.32}=\sqrt{44.8256}=6.7$

Then, we can calculate the probability of X being equal or more than 143 using the z-score:

$z=\dfrac{X-\mu}{\sigma/\sqrt{n}}=\dfrac{143-140.1}{6.7/\sqrt{206}}=\dfrac{2.9}{0.4668}=6.2124\\\\\\P(x\geq143)=P(z>6.2124)=0$

This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

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3 years ago