3 years ago

Ned help quick need the anwser

Mathematics

1 answer:

Degger [83]3 years ago

7 0

Answer:

1 D

6 I that is an i

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Find the derivative:<br> f(x)=tan(x^2+5)

AlekseyPX

Answer:

$f'(x)=2x \sec^2(x^2+5)$

Step-by-step explanation:

To differentiate this we will need to use the chain rule:

$[h(g(x))]'=g'(x) \cdot h'(g(x))$ .

We will also have to keep in mind how to differentiate the following:

$\tan(\theta)$ with repect to $\theta$

$x^2+5$ with respect to $x$ .

$f(x)=\tan(x^2+5)$

Derivative of both sides:

$f'(x)=(x^2+5)'\cdot (\tan)'(x^2+5)$

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3 years ago

Melanie can run around the track 9 times in 28 minutes. At this rate, how many laps can she run in 1 hour and 15 minutes?

Dimas [21]

Step-by-step explanation:

First step is to identify what the problem is asking for and what is given.

9 laps in 28 minutes

Searching for number of laps in 1 hour and 15 min.

1 hour + 15 min. = 75 minutes convert to minutes

9 laps / 28 minutes = x laps / 75 minutes create an equation

9/28 = x/75

9*75 = 28x cross multiply

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