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Anettt [7]
3 years ago
9

Kl =4x+3 jk =4x+2 and jl =45 find kl

Mathematics
1 answer:
guapka [62]3 years ago
7 0

sorry if wrong (answer 23)

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If f (x)= x-3 and g (x)= 2x-4, find (f+g)(x)
const2013 [10]

(f∘g)(x) is equivalent to f(g(x)). We solve this problem just as we solve f(x). But since it asks us to find out f(g(x)), in f(x), each time we encounter x, we replace it with g(x).

In the above problem, f(x)=x+3.

Therefore, f(g(x))=g(x)+3.

⇒(f∘g)(x)=2x−7+3

⇒(f∘g)(x)=2x−4

Basically, write the g(x) equation where you see the x in the f(x) equation.

f∘g(x)=(g(x))+3 Replace g(x) with the equation

f∘g(x)=(2x−7)+3

f∘g(x)=2x−7+3 we just took away the parentheses

f∘g(x)=2x−4 Because the −7+3=4

This is it

g∘f(x) would be the other way around

g∘f(x)=2(x+3)−7

now you have to multiply what is inside parentheses by 2 because thats whats directly in front of them.

g∘f(x)=2x+6−7

Next, +6−7=−1

g∘f(x)=2x−1

Its a lts easier than you think!

Hope this helped

5 0
3 years ago
Which of the following is a valid exclusion for the algebraic fraction 8ab^2x/4a^2b - 8ab^2
avanturin [10]

The valid exclusion of the algebraic fraction is (c) a =0, b =0, a =2b

<h3>How to determine the valid exclusion?</h3>

The expression is given as:

8ab^2x/4a^2b - 8ab^2

Set the denominator to 0

4a^2b - 8ab^2 = 0

Divide through by 4ab

a - 2b = 0

Add 2b to both sides

a = 2b

Hence, the valid exclusion of the algebraic fraction is (c) a =0, b =0, a =2b

Read more about algebraic fraction at:

brainly.com/question/4344214

#SPJ1

7 0
1 year ago
-2 1/2-(2 1/2)<br> help me now ples
FromTheMoon [43]

Answer:

-7/2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
This is for my little sister so halp .-_-.
Kipish [7]

Answer:

1x3=3

0.4x3=1.2

0.5x1=0.5

0.4x0.5=0.2

Step-by-step explanation:

8 0
3 years ago
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Which triangle is congruent to Triangle CAT by the ASA Postulate?
bekas [8.4K]

Answer:

Triangle GDO

Step-by-step explanation:

please leave brainiest 5 star and thx i really appreciate it

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3 years ago
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