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3 years ago

Which inequality BEST represents the number of days, d, she practices?

Mathematics

1 answer:

tino4ka555 [31]3 years ago

7 0

Answer:

The first choice

Explanation:

Because there is a closed dot, you need to use either less than or equal to or greater than or equal to. And because it’s pointing to left and getting smaller, d is less than or equal to 5.

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Evaluate 9 – b when b = 8.

FromTheMoon [43]

Answer:

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Step-by-step explanation:

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3 years ago

What is the derivative of the following function? f(x) = 4x^6/cos^5(x)

KIM [24]

Answer:

$f'(x) = \frac{24x^{5} \cos x + 20x^{6}\sin x}{\cos^{6}x }$

Step-by-step explanation:

We have to find the derivative of the following function:

$f(x) = \frac{4x^{6} }{\cos^{5} x }$

Now, differentiating both sides with respect to x we get,

$f'(x) = \frac{\cos^{5}x (24x^{5}) - 4x^{6}(5\cos^{4}x )(- \sin x)}{(\cos^{5}x )^{2}}$

⇒ $f'(x) = \frac{ 24x^{5} \cos x + 20 x^{6}\sin x}{\cos^{6}x }$ (Answer)

{Since, we know that, $\frac{d(mx^{n} )}{dx} = m \times n x^{(n - 1)}$ and $\frac{d(\cos^{n} x)}{dx} = n \cos^{(n - 1)} x(- \sin x)$ }

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3 years ago

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Answer:

$- 18 {x}^{4} + 117 {x}^{3} + 71 {x}^{2} - 52x - 28$

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3 years ago

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Kryger [21]

Answer:

Your answer is 2 4/7.

Step-by-step explanation:

Hope this helps!

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2 years ago

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Step-by-step explanation:

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3 years ago