3 years ago

I think it’s C am I correct

Mathematics

1 answer:

Luden [163]3 years ago

7 0

Answer:

yes you are correct it is c

Step-by-step explanation:

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A scientist wishes to estimate the mean breaking strength of a certain type of steel rod within 3.0 psi with 95% confidence. Bas

yaroslaw [1]

Answer:97 rods

Step-by-step explanation:

The number of steel rods for 95% confidence level

$n=\left ( \frac{Z_\frac{\alpha }{2}\times \hat{\sigma }}{E} \right )^2$

$Z_\frac{\alpha }{2}=1.96$

E=3

$\hat{\sigma }=15$

Substituting values

$n=\left ( \frac{1.96\times 15}{3}\right )^2$

$n=96.04\approx 97$

Thus 97 rods is tested

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4 years ago

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Gre4nikov [31]

The answer is 3!

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3 years ago

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erma4kov [3.2K]

Answer:

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Step-by-step explanation:

i think i hope its right

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2 years ago

2. Which rule defines the function in the graph shown?

Svetlanka [38]

Answer:

Function rule is option c.

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4 years ago

What is the degree <br> A. 2<br> B. 3<br> C. 6<br> D. 8

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