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Marina CMI [18]

2 years ago

13

The dot plots show the numbers of children’s books purchased by customers at two different bookstores on one day.

1 answer:

ololo11 [35]2 years ago

3 0

Answer:

A

Step-by-step explanation:

since mean is the most annoying to calculate I went through and did everything else, the range is the same as both charts go 0-6. The median is is the middle number which means store 1 has a higher number of 3' s but our option says store 2 is greater and B is the mode, the number that shows up the most.

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One kilometer is equal to 0.62 miles. Which best describes the relationship?

Alex_Xolod [135]

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) The density of oil in a circular oil slick on the surface of the ocean at a distance of r meters from the center of the slick

Feliz [49]

Answer:

Therefore the mass of the of the oil is 409.59 kg.

Step-by-step explanation:

Let us consider a circular disk. The inner radius of the disk be r and the outer diameter of the disk be (r+Δr).

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=The area of the outer circle - The area of the inner circle

= $\pi (r+\triangle r)^2- \pi r^2$

$=\pi [r^2+2r\triangle r+(\triangle r)^2-r^2]$

$=\pi [2r\triangle r+(\triangle r)^2]$

Since (Δr)² is very small, So it is ignorable.

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We know,

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$=(2r \pi \triangle r)(\frac{40}{1+r^2}})$

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Therefore

$\sum_{i=1}^n \frac{80r_i\pi }{1+r^2}\triangle r_i=\int_0^5 \frac{80r\pi }{1+r^2}dr$

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$=40\pi [ln(1+5^2)-ln(1+0^2)]$

$=40\pi ln(26)$

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Therefore the mass of the of the oil is 409.59 kg.

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Answer:

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Step-by-step explanation:

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bixtya [17]

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