Factor over the complex numbers: 36x2 + 9.

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

4 0

$36x^2+9=(6x)^2-(-9)=(6x)^2-(-3^2)\\\\=(6x)^2-(3i)^2=(6x-3i)(6x+3i)\\\\\text{Used:}\\a^2-b^2=(a-b)(a+b)\\\\i^2=-1$

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anastassius [24]

Mn - 4m - 5n + 20

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m(n-4) -5n + 20

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Let A(t) represent the amount of money in a bank account at time t years. The rate at which the account is increasing is proport

nikdorinn [45]

Answer:

Step-by-step explanation:

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The rate at which the account is increasing is proportional to the amount of money in the account, which is modeled by the differential equation:

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When A(t)=$1000, $\dfrac{dA}{dt}=50$

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Substituting into our result from A(t) above:

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