All categories

3 years ago

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

You might be interested in

Please help<br> y=-3x + 5 if y>-1

xenn [34]

Answer:

y = -3x +5. if y>-1

Step-by-step explanation:

-1 < -3x + 5

-6 < -3x

x < 2

4 0

3 years ago

on monday 3/4 inch of snow fell on tuesday 5/8 inch of snow fell write a statement that correctly compares the snow amounts

rodikova [14]

I'm not sure of the answer, but I think it might be 3/4>5/8 because 3/4 is a greater amount than 5/8

6 0

3 years ago

Are there 5 100s in 0.305?

34kurt

no, 5 is in the thousandths place

4 0

3 years ago

Read 2 more answers

How do you find ratio

ser-zykov [4K]

<span>Identify the known ratio and the unknown ratio.Set up the proportion.Cross-multiply and solve.Check answer by plugging result into unknown ratio. Look here for the formula: </span>http://prntscr.com/e0qtq3

6 0

3 years ago

Choose the correct simplification of the expression (−2x + 6y)(4x − 6y).

Minchanka [31]

Answer:

$-8x^2 +36xy - 36y^2$

Step-by-step explanation:

(−2x + 6y)(4x − 6y)

To multiply this we use FOIL method

first we multiply -2x with 4x, it becomes -8x^2

Then multiply -2x with -6y, we get 12xy

multiply 6y with 4x, we get 24xy

multiply +6y with -6y, we get -36y^2

Now we commbine all the answers we got

$-8x^2 +12xy+24xy - 36y^2$

combien like terms

12xy+24xy= 36xy

$-8x^2 +36xy - 36y^2$

8 0

3 years ago

Read 2 more answers