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3 years ago

If f(x) = -x^2 – 1, and g(x) = x + 5, then g(f (x)) = -x^2+[ ?]x + [ ?]

Mathematics

1 answer:

trasher [3.6K]3 years ago

5 0

Answer:

answer is -x^2-1+5

Step-by-step explanation:

so you can do it .

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Y=arccos(1/x) Please help me do them all! I don’t know derivatives :(

Stells [14]

Answer:

$f(x) = {sec}^{ - 1} x \\ let \: y = {sec}^{ - 1} x \rightarrow \: x = sec \: y\\ \frac{dx}{dx} = \frac{d(sec \: y)}{dx} \\ 1 = \frac{d(sec \: y)}{dx} \times \frac{dy}{dy} \\ 1 = \frac{d(sec \: y)}{dy} \times \frac{dy}{dx} \\1 = tan \: y.sec \: y. \frac{dy}{dx} \\ \frac{dy}{dx} = \frac{1}{tan \: y.sec \: y} \\ \frac{dy}{dx} = \frac{1}{ \sqrt{( {sec}^{2} \: y - 1}) .sec \: y} \\ \frac{dy}{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \frac{d( {sec}^{ - 1}5x) }{dx} = \frac{1}{ |5x | \sqrt{25 {x }^{2} - 1} }\\\\y=arccos(\frac{1}{x})\Rightarrow cosy=\frac{1}{x}\\x=secy\Rightarrow y=arcsecx\\\therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} }$

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2 years ago

If f(x) = StartFraction x Over 2 EndFraction + 8, what is f(x) when x = 10?

nikdorinn [45]

Answer:

Step-by-step explanation:

test edge2020

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2 years ago

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Can someone help me with this please?

pantera1 [17]

Answer:

D I believe

explanation: 772.malachi on insta

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3 years ago

A student survey was conducted in a major university, where data were collected from a random sample of 750 undergraduate studen

Mekhanik [1.2K]

Answer:

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Step-by-step explanation:

The variable mentioned in this case is categorical. That is, it has no numerical value, and can only be put into categories.

Some of the basic rule In statistics to represent data using charts are as follows:

• For categorical variables (nominal/ordinal) variables, use pie charts and bar charts

• For interval/ratio variables, use histograms

A pie chart is a circular chart divided into wedge-like portions and is basically used to display percentage or proportion of categories in the data The percentage represented by each category is shown by the corresponding slice/portion of the whole pie.

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3 years ago

In 72,165 give the value of the digit in the thousands place?

DerKrebs [107]

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ok

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3 years ago