2 years ago

Can anyone help me with math

Mathematics

1 answer:

Iteru [2.4K]2 years ago

8 0

Answer:

Step-by-step explanation:

Hope this helps plus happy new year!

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The time to complete the construction of a soapbox derby car is normally distributed with a mean of three hours and a standard d

TEA [102]

Answer:

The probability that it would take more than four hours to construct a soapbox derby car = 0.1587 or 15.87 $\%$

Step-by-step explanation:

Given -

Mean $(\nu )$ = 3 hours

Standard deviation $(\sigma )$ = 1 hours

Let X be the no of hours to construct a soapbox derby car

the probability that it would take more than four hours to construct a soapbox derby car =

$P(X > 4)$ = $P(\frac{X - \nu }{\sigma}> \frac{4 - 3 }{1})$

= $P(Z > 1)$ Put $(Z = \frac{X - \nu }{\sigma})$

= 1 - $P(Z < 1)$

= 1 - .8413 Using z table

= 0.1587

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2 years ago

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scoray [572]

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Step-by-step explanation:

The rectangles are similar by a factor of 10, so simply divide the measure by 10 to get the length of the smaller one.

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2 years ago

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viva [34]

Answer:

1.39

Step-by-step explanation:

nearest hundredth is 9

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Melanie is reading a book that has 577 pages. She has already read 187 pages of the book and will read an additional 26 pages pe

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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