2 years ago

Need help on this please

Mathematics

2 answers:

alexandr402 [8]2 years ago

7 0

Answer:

5.7

Step-by-step explanation:

7^2- 4^2= 33

$\sqrt{33}$ = 5.7

sweet-ann [11.9K]2 years ago

5 0

5.7 is the main answer which is correct

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Primitive function for:<br><br> 1. f(x)=4e2x+e−x, sådan att F(0)=2

Free_Kalibri [48]

The primitive function for $f(x) = 4e^{2x} + e^{-x}$ is given by it's indefinite integral.

To calculate it, recall:

$\frac{d}{dx}e^{ax}=ae^{ax}$

$\int c f(x)dx = c\int f(x)dx$

Let's begin

$\int 4e^{2x}+e^{-x}dx \\4\int e^{2x}dx+ \int e^{-x}dx\\4\frac{e^{2x}}{2}+\frac{e^{-x}}{-1} + c\\$

$F(x) = 2e^{2x}-e^{-x} +c$

To find the costant, we just need to use the fact that $F(0)=2$

$F(0) = 2 \\4e^{0}+e^{0} + c =2\\5+c =2\\c=-3$

Therefore,

$\boxed{F(x) = 2e^{2x} - e^{-x} -3 }$

6 0

2 years ago

Arrange the following number in descending order 0,9; 0,009; 0,09; <br>0,0009 ;9,09

VLD [36.1K]

Answer:

9.09 , 0.9 , 0.09 , 0.009 , 0.0009

Explanation:

The more places behind a decimal point a number is, the smaller it is

Hope this helped you! :)

8 0

2 years ago

Can somebody help? Please

tatiyna

90-73=17
answer：17 hahahaaha

6 0

3 years ago

Read 2 more answers

Defined terms examples

Vera_Pavlovna [14]

A thing characteristic of its kind or illustrating a general rule

4 0

3 years ago

Como convertir 18/5 en # mixtoooo . ayudenme porq no s convertir en # mixto

Andrew [12]

I do not understand ur language I speak English sorry I cannot help u have a good day

3 0

3 years ago