A scientist studies a pod of humpback whales to determine the

Mathematics

1 answer:

Alborosie3 years ago

6 0

Answer:

C. A pod of humpback whales

The scientists is trying to draw a conclusion about all humpback whales by looking at the behaviors of a pod of humpback whales.

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A rectangle with vertices A(6, 0), K(0,0), L(0,9), and M(6, 9) is rotated around the x-axis. To the nearest tenth of a cubic uni

koban [17]

Answer:

1526.0 cubic units

Step-by-step explanation:

Rotating rectangle AKLM you will get cylinder with height KA and base radius KL. From the given data

$KA=\sqrt{(6-0)^2+(0-0)^2}=6,\\ \\KL=\sqrt{(0-0)^2+(9-0)^2}=9.$

The volume of the cylinder is

$V_{cylinder}=\pi r^2\cdot H.$

Then

$V_{cylinder}=\pi \cdot 9^2\cdot 6=486\pi \approx 1526.0\ un^3.$

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3 years ago

I am weighed on scales which have a 10% error, that is, the scales show me 10% heavier than my real weight. If I actually weigh

stiks02 [169]

Remember you said the scale shows you 10% heavier.

So that's an increase of 10%

So value = 10% + 100% = 110%

So scale would show 110% of 82

110% of 82

= (110/100) * 82

= 1.1 * 82

= 90.2

OR

We can simply find 10% of 82 and add it to the original 82.

10% of 82

(10/100) * 82

0.1 * 82 = 8.2

8.2 + 82 = 90.2 Same answer as before.

So scale shows 90.2 kg.

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3 years ago

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Three copies of a 14x45 rectangle were connected along a side to make a larger rectangle. What could the perimeter of the new re

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Answer:

298 or 174

Step-by-step explanation:

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George buys some first class and second class stamps to put on some letters. Each first class stamp costs 67p, and each second c

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