Use the quadratic formula to solve x2 + 8x + 9 = 0. What are the solutions to the equation?

Mathematics

1 answer:

Yuri [45]4 years ago

8 0

2x + 8x +9 =0
10x +9 =0
10x = -9
————-
10x
Answer is - 1.1

You might be interested in

Can someone help me please!!

Reika [66]

Answer:

X = 12

4x + 12 = 5x
subtract 4x on each side and you're left with x=12

3 0

3 years ago

Choose the item that has measurable volume.

Ira Lisetskai [31]

The Soccer ball has measurable volume

4 0

3 years ago

Read 2 more answers

BEST GETS BRAINLEST.

sashaice [31]

We know that the given side lengths are x and the height is x.

Therefore, the area of the base = $A = x * x$

$Formula =\ \textgreater \ volume = length*width*height
$

$To \ find \ the \ volume \ of \ 1 \ slab, \ multiply \ by \ the \ height$ $x -3$

$= x*x*(x-3)$

$Volume \ of \ 25 \ slabs =$ $25*x^2*(x-3)=350000$

$350,000/25 = 14,000$ 

$x^3 - 3x^2 - 14000$ 

$= 25.14$

 $
Rounded => x=25$

8 0

3 years ago

Read 2 more answers

What is the right way to use substitution method?

Kazeer [188]

Answer:

Step-by-step explanation:

Substitution method can be applied in four steps. Step 1: Solve one of the equations for either x = or y = . Step 2: Substitute the solution from step 1 into the other equation. Step 3: Solve this new equation Happy too help!

7 0

3 years ago

PLEASE HELP ASAP 3/10/p=4/5/1/4

kati45 [8]

Answer:

Step-by-step explanation:

6 0

3 years ago