All categories

3 years ago

- x² - 4x + 12 = 0 how do u solve by completing the square

Mathematics

1 answer:

MrRa [10]3 years ago

8 0

Answer:

Step-by-step explanation:

Simplifying

x2 + -4x + -12 = 0

Reorder the terms:

-12 + -4x + x2 = 0

Solving

-12 + -4x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.

(-2 + -1x)(6 + -1x) = 0

You might be interested in

A train drove the distance of 440 feet in 20 seconds. Select ALL the unit rates that are equivalent to the speed of the model ai

katrin [286]

Answer:

yo is ya boi Nick you already know what it is yeah big daddy nick

4 0

3 years ago

Calculate the trade discount for 3030 boxes of computer paper if the unit price is $14.9314.93 and a single trade discount rate

zhannawk [14.2K]

Answer:

Total trade discount on 30 boxes = $201.555

Step-by-step explanation:

1 box = $14.93

And a trade discount of 45% is allowed on a single box,

Therefore, the discount on one $14.93 box will be

45% × $14.93 = $6.7185

So, if there are now 30 boxes, the trade discount on all 30 boxes will be

30 × (trade discount on one box) = 30 × ($6.7185) = $201.555

Hope this helps!

5 0

3 years ago

Solve: 3n+18-n=38<br>Need help

docker41 [41]

Hope this helps you!

4 0

3 years ago

Anyone wanna give me stuff in rocket league pc hehehehehe

adell [148]

Answer:

not really hehehehehe

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

6 0

3 years ago

- x² - 4x + 12 = 0 how do u solve by completing the square​

- x² - 4x + 12 = 0 how do u solve by completing the square