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AlladinOne [14]
3 years ago
12

Karina and Perry are cleaning up litter in the park for community service hours. Karina and Perry both claim they have covered t

he greatest area. Who is correct? Justify your answer using mathematical reasoning.

Mathematics
1 answer:
alexgriva [62]3 years ago
7 0

Answer:

Perry's claim is correct while Karina is incorrect

Step-by-step explanation:

Question is incomplete (See Attachment)

First, we need to determine the area covered by Karina and Perry

For Karina, there are 9 square boxes each of which has an area of 1 unit sq

So:

Karina = 9 * 1\ unit^2

Karina = 9\ unit^2

For Perry:

There are 18 square boxes, each of which has an area of 1 unit sq.

So:

Perry = 18 * 1\ unit^2

Perry = 18\ unit^2

Comparing both areas, we can conclude that <em>Perry's claim is correct while Karina is incorrect</em>

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Answer:

Step-by-step explanation:

Adding both equations

4x+5y+5y-4x=19+38

10y = 57

y= 5.7

Subtracting equation i from ii

5y-4x-4x-5y=38-19

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3 years ago
Jill is standing at the base of her apartment building. She measures the angle of elevation to the top of a nearby tower to be 4
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Answer:

1) From the measure of 40°, you can write:

tan(40°) = 100/x, where x is the base from the building to the tower

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Then, y = tan(30°) * 119,18 = 68,81 m

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Answer:

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Step-by-step explanation:

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The annual salaries of employees in a large company are approximately normally distributed with a mean of $50,000 and a standard
Lena [83]

Answer:

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Step-by-step explanation:

We are given that

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Standard deviation,\sigma=2000

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P(x\leq 45000)=P(Z\leq-\frac{5000}{2000})

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P(x\leq 45000)=0.00621

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