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Katena32 [7]
2 years ago
14

PLZ NEED HELP i will GIVE YOU BRAINS FOR THE BEST EXPLINATION :)

Mathematics
2 answers:
Llana [10]2 years ago
5 0
The answer is –7/26 (in decimal form –0.2692307)
r-ruslan [8.4K]2 years ago
4 0

the Answer:

here :) -7/26

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Find the inverse of the given function.
kodGreya [7K]

For this case we must find the inverse of the following function:

f (x) = - \frac {1} {2} \sqrt {x + 3}

We follow the steps below:

Replace f(x) with y:

y = -\frac {1} {2} \sqrt {x + 3}

We exchange the variables:

x = - \frac {1} {2} \sqrt {y + 3}

We solve for "y":

- \frac {1} {2} \sqrt {y + 3} = x

Multiply by -2 on both sides of the equation:

\sqrt {y + 3} = - 2x

We raise both sides of the equation to the square to eliminate the radical:

(\sqrt {y + 3}) ^ 2 = (- 2x) ^ 2\\y + 3 = 4x ^ 2

We subtract 3 from both sides of the equation:

y = 4x ^ 2-3

We change y by f ^ {- 1} (x):

f ^ {- 1} (x) = 4x ^ 2-3

Answer:f ^ {- 1} (x) = 4x ^ 2-3

7 0
3 years ago
Read 2 more answers
What is an equation, in standard form, of the line through (1,7) and (-2, -3)?
mr Goodwill [35]

Answer: -23

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Write two different pairs of decimals whose sums are 14.1 and one pair should involve regrouping
mr Goodwill [35]
<span>two pairs of decimals that add up to 14.1 would be 8.4 and 5.7</span>
7 0
2 years ago
If the following fractions were arranged on a number line from least to greatest what will be the correct order of arrangement 7
Olegator [25]
A really easy way to do this would be converting them all to decimals by dividing the top number by the bottom number.
7/5 = 1.4
15/4 = 3.75
3/2 = 1.5
11/4 = 2.75
13/3 = 4.33
Start with the whole numbers. 3/2 and 7/5 must go first since they both have a 1. 7/5 goes before 3/2 since it has a 4 in the tenths place, while 3/2 has a 5. 
Next would be 11/4 since it has a 2, then 15/4 with a 3, and lastly 13/3 with a 4 as a whole number
Answer is 7/5 , 3/2 , 11/4, 15/4 , 13/3
4 0
3 years ago
I actually need help bhっっっっb
Artyom0805 [142]

How long have you been stuck on this problem???

5 0
3 years ago
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