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zvonat [6]
3 years ago
13

GIVING 20 POINT BRAINLIST IF YOU ANWSER THE FULL QUESTION!

Mathematics
1 answer:
Ne4ueva [31]3 years ago
4 0

Answer: x=-11  x=5

Step-by-step explanation:

<h3>(x+3)^2=72-8</h3><h3>(x+3) (x+3) = 64</h3><h3>x(x+3) +3(x+3) = 64</h3><h3>x^2 +3x+3x+9=64</h3><h3>x^2+6x+9=64</h3><h3>0=x^2+6x+9-64</h3><h3>0=x^2+6x-55</h3>

ok you look for two numbers that will multiply to -55 and also when added or subtracted it will give +6 and those 2 numbers where:

<h3>11*-5= -55    11 -5 =6</h3><h3>0=(x+11) (x-5)</h3><h3>x+11=0        x-5=0</h3><h3>x= -11           x= 5</h3><h3>YOU CAN GRAPH IT ON DESMOS TO FIND YOUR X-INTERCEPTS</h3>
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"A laboratory tested 73 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with LaTeX: \sigmaσ = 17.4
Scrat [10]

Answer:

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

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Now, find M as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{17.4}{\sqrt{73}} = 3.99

The lower end of the interval is the sample mean subtracted by M. So it is 230 - 3.99 = 226.01

The upper end of the interval is the sample mean added to M. So it is 230 + 3.99 = 233.99.

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

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3 years ago
There are six bottles of juice for the same size and we need to make each kid have a 1/3 of a bottle how many kids will there be
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