2 years ago

What does d/dx (-8x - 643)=

Mathematics

1 answer:

poizon [28]2 years ago

3 0

See the attachment.....

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F(x)= x^3-4x^2+9 and let g(x)=6x^3+x^2-5x-12 what is f(x)-g(x)

Anarel [89]

$f(x) - g(x) = -5x^3-5x^2+5x +21$

Step-by-step explanation:

Given functions are:

$f(x) = x^3-4x^2+9\\g(x) = 6x^3+x^2-5x-12$

We have to find the difference of functions

So,

$f(x) - g(x) = x^3-4x^2+9 - (6x^3+x^2-5x-12)\\= x^3-4x^2+9-6x^3-x^2+5x+12$

Combining like terms

$x^3-4x^2+9-6x^3-x^2+5x+12\\=x^3-6x^3-4x^2-x^2+5x+9+12\\= -5x^3-5x^2+5x +21$

Hence,

$f(x) - g(x) = -5x^3-5x^2+5x +21$

Keywords: Functions, Operations

Learn more about functions at:

#LearnwithBrainly

7 0

2 years ago

Evaluate 4 square root 9 square root 9 over 4 square root 9^5

Sedbober [7]

$\frac{\sqrt[4]{9}.\sqrt{9}}{\sqrt[4]{9^5}}$

$\frac{9^\frac{1}{4}.9^\frac{1}{2}}{9^\frac{5}{4}}$

$\frac{9^\frac{6}{8}}{9^\frac{5}{4}}$

$9^{\frac{6}{8}-\frac{5}{4}}$

$9^\frac{-1}{2}$

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2 years ago

Explain why cos(x)=sin(90-x) for x such that 0

aleksley [76]

Use the sin(a - b) formula.
sin(90 - x) = 
sin90 cosx - cos90 sinx = 
1 cosx - 0 sinx = 
cosx

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2 years ago

Quick algebra question 15 points and will mark brainliest if correct

Iteru [2.4K]

Answer:

I belive it would be c

Step-by-step explanation:

because if you read the question it says the lowest point altho they are equale it still makes sence to put c

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2 years ago

Don, Marco, and Trina want to equally share 29 sheets of drawing paper. How many whole sheets of drawing paper will each person

frosja888 [35]

29/ 3 = 9.666 so you would have 9 whole sheets of paper since you can not have half a sheet according to the question

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2 years ago