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cluponka [151]
3 years ago
6

TanA= 2xy/(x^2+y^2),find sinA​

Mathematics
1 answer:
valina [46]3 years ago
7 0

Step-by-step explanation:

TanA = SinA/CosA

                                 tanA = 2xy / (x² + y²),

                                 Sin A = CosA * 2xy / (x² + y²)

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Please help me with 19 and 20 please
lesya [120]

9514 1404 393

Answer:

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Step-by-step explanation:

19. There is no decline or decrease indicated on this graph. If growth were exponential, the graph would be concave upward, which it is not. There is continued growth indicated.

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<em>Additional comment</em>

As with any statement of percentage, you need to be very clear about what the base is.

Here, 100% is the number of farms in 2005, so an increase of 40% per year is an increase by 40% of the number in 2005. That is very different from 40% of the number in the previous year, which is how an annual percentage increase is usually interpreted. (The average annual rate of change is closer to 24% with respect to the previous year's number.)

3 0
3 years ago
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pochemuha
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4 0
2 years ago
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zimovet [89]

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3 years ago
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hope this helped


4 0
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