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mr Goodwill [35]

1 year ago

15

Deana's Deli has a mean delivery time of 23 minutes with a standard deviation of 2 minutes. Determine the z-score for the number

of sandwiches delivered in less than 24 minutes. −0.5 0.5 11.5 12

1 answer:

LekaFEV [45]1 year ago

8 0

Answer:

o.5

Step-by-step explanation:

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A 100-gallon barrel, initially half-full of oil, develops a leak at the bottom. Let A(t) be the amount of oil in the barrel at t

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Answer:

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Step-by-step explanation:

Given that:

Let A(t) to be the amount of oil in the barrel at time t.

However; Suppose that the amount of oil is decreasing at a rate proportional to the product of the time elapsed and the amount of oil present in the barrel.

Then,

$\frac{dA}{dt} \ \alpha \ A^2$

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So, A(0) = 100/2 = 50

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The variable is now being separated as:

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Taking integral of both sides; we have:

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However; since A(0) = 50; Then

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2 years ago

A police officer claims that the proportion of accidents that occur in the daytime (versus nighttime) at a certain intersection

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Step-by-step explanation:

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Test statistic for population proportion :-

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Answer:

Number of rectangles could alex draw with an area of 11cm² = 1

Step-by-step explanation:

Minimum length in centimeter grid = 1 cm

Alex is drawing rectangles with different areas on a centimetre grid.He can draw 3 different rectangles with an area of 12cm²

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$12 = 1 \times12\\\\12=2\times6\\\\12=3 \times4$

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Now we need to find how many rectangles could alex draw with an area of 11cm².

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