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Dmitriy789 [7]
3 years ago
14

1/2x + 4=9 What does x equal?

Mathematics
2 answers:
Ludmilka [50]3 years ago
5 0

Answer:

x=10

Step-by-step explanation:

1/2x+4=9

subtract 4 from both sides

1/2x=5

multiply both sides by 2 to get x by itself

x=10

Shkiper50 [21]3 years ago
4 0

Answer:

1/2x+4=9 is x=1/10

Step-by-step explanation:

theres no explanation

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For the functions f(x) = 2x – 3 and g(x) = 5x + 5, find (f • g)(x).
Nimfa-mama [501]

Answer:

f(g(x)) = 10x + 7

Step-by-step explanation:

(f . g)(x) = f(g(x)) is the composition of the functions f(x) and g(x).

f(g(x)) means that g(x) becomes the input for f.

Now, f(x) = 2x - 3 and g(x) = 5x + 5.

f(g(x)) = f(5x + 5)

         = 2((5x + 5) - 3)

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4 years ago
Given the figure below, find EF if CA = (6n) and EF = (n + 8)
GalinKa [24]

Answer:

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Step-by-step explanation:

Given

CA =6n

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Required

Find CN

From the attachment:

EF = CD\ and\ CD = DA

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This means that:

CA = CD + CD

CA = 2CD

or

CA = 2*EF

This gives:

6n = 2*(n+8)

Open bracket

6n = 2n+16

Collect anf simplify like terms

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So:

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Step-by-step explanation:

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