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Mariana [72]
3 years ago
9

If f(x) = 5 + 4x^2, then f(3) =

Mathematics
2 answers:
castortr0y [4]3 years ago
6 0

Step-by-step explanation:

F(3) = 5 + 4(3)^2

f (3) = 5 = 36

f(3) = 41

Hope i helped u

bezimeni [28]3 years ago
3 0

Answer:

<h2>f(3) = 41</h2>

Step-by-step explanation:

f(x) = 5 + 4x²

To find f(3) substitute the value of x that's 3 into f (x) which means for every x in f (x) replace it with 3

That's

f(3) = 5 + 4(3)²

= 5 + 4( 9)

= 5 + 36

We have the final answer as

<h3>f(3) = 41</h3>

Hope this helps you

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If I buy a stereo for $245 and this includes GST of 10%, what is the pre-GST price?
Ivan

Answer:  $222.73

===========================================

Work Shown:

x = pre-GST price

10% of x = 0.10x = tax amount

x + 0.10x = 1.10x = post-GST price = 245

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------------

Check:

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