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3 years ago

Find inverse of f(x)=x^3-9Not sure of my answer!

1 answer:

7 0

as you may already know, to get the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

$\bf \stackrel{f(x)}{y}=x^3-9\implies \stackrel{\textit{quick switcheroo}}{\underline{x}=\underline{y}^3-9}\implies x+9=y^3\implies \sqrt[3]{x+9}=\stackrel{f^{-1}(x)}{y}$

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Find the slope of the line passing through the points (-5,1) and (2,4).

Leno4ka [110]

Answer:

<h3> $\boxed{ \bold{ \huge{ \boxed{ \sf{ \frac{3}{7} }}}}}$ </h3>

Step-by-step explanation:

Let the points be A and B

A ( -5 , 1 ) ⇒( x₁ , y₁ )

B ( 2 , 4 )⇒( x₂ , y₂ )

Finding the slope of the line passing through these Points

Slope = $\sf{ \frac{y2 - y1}{x2 - x1} }$

plug the values

⇒ $\sf{ \frac{4 - 1}{2 - ( - 5)} }$

We know that $\sf{( - ) \times ( - ) = ( + )}$

⇒ $\sf{ \frac{4 - 1}{2 + 5} }$

Subtract 1 from 4

⇒ $\sf{ \frac{3}{2 + 5} }$

Add the numbers

⇒ $\sf{ \frac{3}{7} }$

Hope I helped!

Best regards!!

7 0

3 years ago

The symbol 5! means 5* 4*3*2*1. What is the greatest odd integer that is a factor of 5!?

NNADVOKAT [17]

Answer:

Step-by-step explanation:

5 ! = 120

Since 5 ! = 5 × 4 × 3 × 2 × 1, then

5 × 3 = 15 is the greatest odd factor of 5 !

4 0

3 years ago

At a zoo, 7 lizards ate 35 grams of insects in one

lapo4ka [179]

Answer 180 grams of insects

Explanation 7 •\• by 35 = 5 grams each/night.
36 x 5= 180 grams

6 0

3 years ago

I need help with this question

vladimir1956 [14]

The answer is 2 because it is quadratic equation

7 0

3 years ago

The amount of fence a farmer needs to create a garden with width w and length l is f = 5w + 21.

Nonamiya [84]

The formula that represents l in terms of f and w is l = (f-5w)/2

<h3>Subject of formula </h3>

This is way of representing a variable with other variables in an expression, Given the expression that represent the amount of fence a farmer needs to create a garden with width w and length

f = 5w + 2l

Make l the subject of the formula

2l = f - 5w

Divide both sides by 2

2l/2 = (f-5w)/2

l = (f-5w)/2

Hence the formula that represents l in terms of f and w is l = (f-5w)/2

Learn more on subject of formula here: brainly.com/question/657646

#SPJ1

8 0

2 years ago

Find inverse of f(x)=x^3-9Not sure of my answer!​

Find inverse of f(x)=x^3-9Not sure of my answer!