All categories

3 years ago

Quadratic equation x2+x+9=0

Mathematics

2 answers:

wolverine [178]3 years ago

8 0

Answer:

x= -1+- i√35/2(looks weird so I'll include an image)

Step-by-step explanation:

depends on what you wanted to do with this equation, but I'm going to assume you wanted to factor this.

(-b+- √b^2-4ac)/(2a)=

-1+- √1- 4(1)(9)/ 2=

-1+- √1- 36/ 2=

x= -1+- i√35/2

amid [387]3 years ago

5 0

Answer:

2x+11

Step-by-step explanation:

because x+x=2x

2+9=11

Equation: 2x+11

You might be interested in

HELP PLEASE!!1!

Sergio039 [100]

A 180º rotation around the origin changes the coordinates from (x, y) to (-x, -y).
A translation 7 units up increases the y value by 7 units.
A reflection over the x-axis results in the y-values being opposites.

6 0

3 years ago

Read 2 more answers

Solve 3^(x − 2) = 37.<br> A 2<br> B 5<br> C 7<br> D 9

ASHA 777 [7]

Answer:

Step-by-step explanation:

$3^{x-2}=3^7\iff x-2=7\qquad\text{add 2 to both sides}\\\\x-2+2=7+2\\\\x=9$

7 0

3 years ago

Solve for x. write integer or simplified fraction.<br><br>22/2 = x/3

ale4655 [162]

<h3>I'll teach you how to solve 22/2 = x/3</h3>

--------------------------------------------------

22/2 = x/3

Switch sides:

x/3 = 22/2

Divide the numbers 22/2:

x/3 = 11

Multiply both sides by 3:

x/3*3= 11*3

Simplify:

x=33

Your Answer Is x= 33

plz mark me as brainliest :)

5 0

3 years ago

Plz answer. What is the sum? 3x^2-2x-1/x-5 + -2x^2+x-5/x-5

IrinaVladis [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Please help i don't have alot time

zaharov [31]

Answer:

$g\left(x\right)=-\sqrt{x+3}+8$

Step-by-step explanation:

Given function is $f\left(x\right)=-2\sqrt{x-3}+8$ .

Now let's find it's range.

we know that square root function always gives positive output then:

$\sqrt{x-3}\ge0$

$-2\sqrt{x-3}\le-2\left(0\right)$

$-2\sqrt{x-3}\le0$

$-2\sqrt{x-3}+8\le0+8$

$-2\sqrt{x-3}+8\le 8$

$f(x) \le 8$

Hence range of the function is $(-\infty,8]$ .

we can repeat same process to find the range of all the given choices.

we will find that only 3rd choice has same range.

Hence final answer is $g\left(x\right)=-\sqrt{x+3}+8$

8 0

4 years ago