All categories

4 years ago

F(x)=(3+x)/(x-3), what is f(a+2)

Mathematics

1 answer:

RoseWind [281]4 years ago

8 0

$\bf f(x) = \cfrac{3+x}{x-3} ~\hfill f(a+2)=\cfrac{3+(a+2)}{(a+2)-3}\implies f(a+2)=\cfrac{a+5}{a-1}$

You might be interested in

How do you expand (4x+2)2

kifflom [539]

Answer:

=8x+4

Step-by-step explanation:

=2(4x+2)

a=2,b=4x,c=2

=2 x 4x + 2 x 2

Simplify- 2 x 4x + 2 x 2: 8x + 4

6 0

3 years ago

I need help ASAP please

anyanavicka [17]

Answer:

In the picture above.

Step-by-step explanation:

I hope that it's a clear solution.

Good luck:)

7 0

3 years ago

Find the value of x and y for the equation x+y5 7x+9y=6

Nastasia [14]

Answer:

$x = \frac{39}{2}$

$y = -\frac{29}{2}$

Step-by-step explanation:

Given

$x + y= 5$ --- (1)

$7x + 9y = 6$ ---- (2)

Required

Find x and y

Make x the subject in (1)

$x + y= 5$

$x = 5 - y$

Substitute 5- y for x in (2)

$7x + 9y = 6$

$7(5 - y) + 9y = 6$

Open bracket

$35 -7 y + 9y = 6$

Collect like terms

$-7y + 9y = 6 - 35$

$2y = -29$

Divide both sides by 2

$y = -\frac{29}{2}$

Substitute this for y in $x = 5 - y$

$x = 5 - (-\frac{29}{2})$

$x = 5 +\frac{29}{2}$

L.C.M

$x =\frac{10+29}{2}$

$x = \frac{39}{2}$

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=b%20%3D%20%20log_%7B10%7D%28a%29%20" id="TexFormula1" title="b = log_{10}(a) " alt="b = log_

exis [7]

Answer:

$b = log_{10}(a) \\ \\ \therefore \: {10}^{b} = a$

5 0

4 years ago

Kirk bought songs for his MP3 player. He needed 6 more songs to have a total of 100. Write an integer to represent how many more

Anarel [89]

This is very easy to solve once you understanding writing equations. In this case, we could do n+6=100 because we know that the number of songs he has now (n) plus 6 will equal 100. Below is a solution for this equation.

n+6=100
-6 -6
n=94

After solving our equation, we know that Kirk has 94 songs.

3 0

3 years ago