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lapo4ka [179]
3 years ago
11

Please help with this

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

that is very hard XD

Step-by-step explanation:

yes the answer wiil be 6{22238= Xyw

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Determine whether the equation Y=x^2 +13 represents a linear or non linear function and explain
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Step-by-step explanation:

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The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger figure.
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Big babies: The National Health Statistics Reports described a study in which a sample of 354 one-year-old baby boys were weighe
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Answer:

Yes. The data provide enough evidence to support the claim that the mean weight of one-year-old boys is greater than 25 pounds.

P-value=P(t>2.84)=0.0024

Step-by-step explanation:

Hypothesis test on the population mean.

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Then, the null and alternative hypothesis are:

H_0: \mu=25\\\\H_a:\mu>25

The significance level is α=0.05.

The sample size is n=354. The sample mean is 25.8 pounds and the sample standard deviation is 5.3 pounds. As the population standard deviation is estimated from the sample standard deviation, we will use a t-statistic.

The degrees of freedom are:

df=n-1=354-1=353

The t-statistic is:

t=\dfrac{\bar x-\mu}{s/\sqrt{n}}=\dfrac{25.8-25}{5.3/\sqrt{354}}=\dfrac{0.8}{0.2817}=2.84

For a right tailed test and 353 degrees of freedom, the P-value is:

P-value=P(t>2.84)=0.0024

As the P-value is smaller than the significance level, the effect is significant and the null hypothesis is rejected.

There is enough evidence to support the claim that the mean weight of one-year-old boys is greater than 25 pounds.

7 0
3 years ago
Need help!! I’d really appreciate it....
LenaWriter [7]

40. m∠2=148°     m∠4=148°

41. ∠2 and ∠5

42. ∠1 and ∠2

43. ∠3 and ∠5

Sorry, I don't know how to do the rest, but I hope this helps!

6 0
3 years ago
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