2 years ago

Identify the inverse of f(x)=x^2-9

Mathematics

1 answer:

Reika [66]2 years ago

7 0

A
x=y^2-9
x+9=y^2
square root both sides
+-sqrt(x+9)

You might be interested in

The some of the roots of 2x 2 + 8x - 3 = 0 is

vekshin1

$x= \frac{-b \pm \sqrt{ b^{2} -4ac} }{2a}$ ; where a = 2, b = 8 and c = -3
$x= \frac{-8 \pm \sqrt{ 8^{2} -4 \times 2 \times -3} }{2 \times 2} \\ x= \frac{-8 \pm \sqrt{ 64 +24} }{4} \\ x= \frac{-8 \pm \sqrt{ 88} }{4} \\ x= \frac{-8 \pm 2\sqrt{ 22} }{4} \\ x= \frac{-4 + \sqrt{ 22} }{2}\ or\ \frac{-4 - \sqrt{ 22} }{2}$
The sum of the roots is $\frac{-4 + \sqrt{ 22} }{2}+ \frac{-4 - \sqrt{ 22} }{2} \\ = \frac{-8}{2} = -4$
OR
simply sum of roots = -b/a = -8/2 = -4

8 0

4 years ago

Mediante las propiedades de los triángulos, en la siguiente figura el triángulo ∆CDE, determina el valor de la variable “x”.

Vinvika [58]

Answer:

I would love to help, Could you put the question in English?

3 0

3 years ago

If two balanced die are rolled, the possible outcomes can be represented as follows. (1, 1) (2, 1) (3, 1) (4, 1) (5, 1) (6, 1) (

m_a_m_a [10]

3 of the 36 outcomes have a sum of 10. The probability is 3/36 = 1/12

6 0

3 years ago

Read 2 more answers

1. Trisha and Felix are renting a car while on

Mazyrski [523]

Answer:

I think the answer is C

Step-by-step explanation:

7 0

3 years ago

Find the GCF of the given polynomial.<br><br> 8x6y5 - 3x8y3

Whitepunk [10]

The GCF of this polynomial is x^6y^3.
8x^6y^5 - 3x^8y^3 = x^6y^3 (8y^2 - 3x^2)

This polynomial cannot be factorized any further. Hope this helps!

6 0

4 years ago

Read 2 more answers