3 years ago

Whats the equation for this problem?

Mathematics

2 answers:

Marina86 [1]3 years ago

7 0

I know that x is equal to 11 and i hope it helps you
if so please mark as Brainliest

Vlad [161]3 years ago

4 0

I think they may be right

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Find first derivative f(x)= x² - 4 /x³ + 9

vitfil [10]

Answer:

f'(x) = 2x + $\frac{12}{x^{4} }$

Step-by-step explanation:

differentiate using the power rule

$\frac{d}{dx}$ ( a $x^{n}$ ) = na $x^{n-1}$

Given

f(x) = x² - $\frac{4}{x^3}$ + 9 = x² - 4 $x^{-3}$ + 9 , then

f'(x) = 2x + 12 $x^{-4}$ = 2x + $\frac{12}{x^{4} }$

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2 years ago

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#23 solve each equation using linear and quadratic quation

vitfil [10]

The solution for the #23 equation is either x=9 or x= -3

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3 years ago

What is the simplified form of x minus 3 over x squared plus x minus 12 ⋅ x plus 4 over x squared plus 8x plus 16 ?

elena-s [515]

Your answer is in the attached picture.

Hope this helps,
♥Nikki♥

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3 years ago

Hey need some help quick

Goryan [66]

If $z=\pm 15i$ has to be a solution of the equation, just plug it in:

$(\pm 15i)^2 + [1] = 0 \iff -225 + [1] = 0 \iff [1] = 225$

So, the solutions of

$z^2+225=0$

are $z=\pm 15i$

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3 years ago

What number should be added to both sides of the equation to complete the square?

Studentka2010 [4]

Answer:

Step-by-step explanation:

Given

x² + 8x = 4

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(4)x + 16 = 4 + 16, thus

(x + 4)² = 20 ← equivalent equation

5 0

3 years ago