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3 years ago

Use the following function rule to find f(39)

Mathematics

1 answer:

Stolb23 [73]3 years ago

5 0

The answer is 3

EXPLANATION

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Multiply. Check picture.

VashaNatasha [74]

The answer is $3x^4-13x^3-x^2-11x+6$ .

Solution:

Use algebraic identity: $a^m\times a^n=a^{m+n}$

For example: $x^2\times x=x^{2+1}=x^3$

Given expression $(x^2-5x+2)$ and $(3x^2+2x+3)$ .

To multiply these equations.

$(x^2-5x+2)\times(3x^2+2x+3)$

$=x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)$

$=(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)$

$=3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6$

Combine like terms together.

$=3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6$

$=3x^4-13x^3-x^2-11x+6$

$(x^2-5x+2)\times(3x^2+2x+3)=3x^4-13x^3-x^2-11x+6$

Hence the answer is $3x^4-13x^3-x^2-11x+6$ .

3 0

3 years ago

What is number 9 if you leave a step by step ill mark you as best question

chubhunter [2.5K]

The answer choice is B. 50 dollars per month.
50 times 3 is 150 and 50 times 6 is 300.

7 0

3 years ago

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The ratio of ducks to geese in a pond is 3 : 5. There are 27 ducks.<br> How many geese are there?

Gemiola [76]

Answer:

D:G-------> 3:5

27/3=9

9 x 5= 45

45 geese

7 0

3 years ago

What is the value of the expression below when x = 10 and y = 2

dedylja [7]

Answer:

There is no expression below.

5 0

4 years ago

Which equation represents a linear function that has a slope of 4/5<br> and a y-intercept of –6?

vredina [299]

Answer:

$\large\boxed{y=\dfrac{4}{5}x-6}$

Step-by-step explanation:

The slope-intercept form of equation of a linear function:

$y=mx+b$

m - slope

b - y-intercept

We have the slope m = 4/5 and the y-intercept b = -6. Substitute:

$y=\dfrac{4}{5}x-6$

3 0

3 years ago

Read 2 more answers