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GrogVix [38]
3 years ago
13

Marco has $400. Each week, Marco adds $5 to his bank account.

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

I'm pretty sure it's 400w+5=s

Step-by-step explanation:

400w because thats how much he earns each week +5 because that's how much he added =s which equals the total cost in his savings

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Anybody know the correct answer?
earnstyle [38]

Since \csc^2{x}=\frac{1}{\sin^2{x}} and \cot^2{x}=\frac{\cos^2{x}}{\sin^2{x}}, we can rewrite the right side of the equation as

\frac{1}{\sin^2{x}}-\frac{\cos^2{x}}{\sin^2{x}} =\frac{1-\cos^2{x}}{\sin^2{x}}

Using the identity \sin^2{x}+\cos^2{x}=1, we can subtract \cos^2{x} from either side to obtain the identity \sin^2{x}=1-\cos^2{x}

substituting that into our previous expression, the right side of our equation simply becomes

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We can now write our whole equation as

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dividing both sides by 3:

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When 0 ≤ x ≤ π, tan x can only be equal to 1 when sin x = cos x, which happens at x = π/4, and it can only be equal to -1 when -sin x = cos x, which happens at x = 3π/4

4 0
3 years ago
Judy lives in central city, where the tax rate is 3.9%. her property is assessed at $82,000. what is her tax?
coldgirl [10]
Her tax is $3198.
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Justine answered 116 questions correctly on a 200−question test. Answer correctly into the boxes to show the amount as a fractio
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