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2 years ago

Help with a problem again please

Mathematics

2 answers:

lys-0071 [83]2 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]2 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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3 years ago

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Step-by-step explanation:

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2 years ago

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Here's my work:

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3 years ago

A bank loaned out $18,000 , part of it at the rate of 6 % per year and the rest at 14 % per year. If the interest received in

siniylev [52]

Answer:

$6500

Step-by-step explanation:

A bank loaned out $18,000

Let x be the part of amount at the rate of 6 % per year

So, Remaining amount = 18000-x

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the interest received in one year totaled $2000

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R = rate of interest

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3 years ago