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r-ruslan [8.4K]
4 years ago
8

Factor k^2-81...............

Mathematics
1 answer:
umka2103 [35]4 years ago
6 0

Answer:

(k+9)(k-9)

Step-by-step explanation:

k^2-81

k^2-9^2

Apply the difference of squares formula: x^2-y^2=\left(x+y\right)\left(x-y\right)

Thus, k^2-9^2=\left(k+9\right)\left(k-9\right)

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10 Points please help with my calculus HW
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The values based on the calculus computed will be 10✓5, 10✓1, and 20.

<h3>How to calculate the value?</h3>

dy/dt = 5 units.

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dyldt = 5.

dx/dt = 2✓x × 5 = 10✓x

a. When x = 1/5

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b. x = 1

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dx/dt = 10✓1

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dx/dt = 10✓4 = 20

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3 years ago
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