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Leokris [45]
3 years ago
10

Help with a problem again please

Mathematics
2 answers:
lys-0071 [83]3 years ago
6 0

Answer:

\huge\boxed{Option \ 3 : (fg)(x) = 9x^3+27x^2}

Step-by-step explanation:

f(x) = 3x+9\\g(x) = 3x^2

Multiplying both

(fg)(x) = (3x+9)(3x^2)\\(fg)(x) = 9x^3+27x^2

Talja [164]3 years ago
4 0

Answer:

9x³ + 27x²

Step-by-step explanation:

What the question is asking is to multiply f(x) and g(x) together:

Step 1: Write out expression

(fg)(x) = 3x²(3x + 9)

Step 2: Distribute

(fg)(x) = 9x³ + 27x²

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Answer:

1/2, 1/4 & 3/4

Step-by-step explanation:

mean of 0 &1 is\frac{0+1}{2} =\frac{1}{2} \\

mean of 0 and 1/2 is (0+\frac{1}{2} )/2=\frac{1}{2} /2=\frac{1}{2} *\frac{1}{2} =\frac{1}{4}

mean of 1/2 and 1 is (\frac{1}{2} +1)/2=\frac{3}{2} /2=\frac{3}{2} *\frac{1}{2} =\frac{3}{4}

So the three rational numbers are 1/2, 1/4 & 3/4

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