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harkovskaia [24]

2 years ago

5

Given the function f(x) = 3 x - 21 + 6, for what values of x is f(x) = 18?

2 answers:

weqwewe [10]2 years ago

5 0

18=3x-21+6
18=3x-15
33=3x
X=11

IrinaK [193]2 years ago

4 0

Answer:

X=2

If 21+6=27 then subtract what f(x) is (which is 18) from the 27. 27-18=6 then 3x2=6 so therefore your answer is 2. Hope this helps!!

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Answer:

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

Step-by-step explanation:

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In this question:

We need to differentiate S implicitly in function of time. So

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$\frac{dd}{dt} = -0.143$

Area in cm², so diameter in cm.

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