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2 years ago

Uhhh I need help again today

Mathematics

2 answers:

andreyandreev [35.5K]2 years ago

8 0

Answer:

What you need help with or is it something dealing with personal issues?

trapecia [35]2 years ago

7 0

I guess I could help, what grade?

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Solve the equation: k^2+5k+13=0

mr_godi [17]

Step-by-step explanation:

k² + 5k + 13 = 0

Using the quadratic formula which is

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} \\$

From the question

a = 1 , b = 5 , c = 13

So we have

$k = \frac{ - 5 \pm \sqrt{ {5}^{2} - 4(1)(13) } }{2(1)} \\ = \frac{ - 5 \pm \sqrt{25 - 52} }{2} \\ = \frac{ - 5 \pm \sqrt{ - 27} }{2} \: \: \: \: \: \: \\ = \frac{ - 5 \pm3 \sqrt{3} \: i}{2} \: \: \: \: \: \:$

<u>Separate the solutions</u>

$k_1 = \frac{ - 5 + 3 \sqrt{3} \: i }{2} \: \: \: \: or \\ k_2 = \frac{ - 5 - 3 \sqrt{3} \: i}{2}$

The equation has complex roots

<u>Separate the real and imaginary parts</u>

We have the final answer as

$k_1 = - \frac{5}{2} + \frac{3 \sqrt{3} }{2} \: i \: \: \: \: or \\ k_2 = - \frac{5}{2} - \frac{3 \sqrt{3} }{2} \: i$

Hope this helps you

8 0

2 years ago

4 days =____ hours<br><br><br> ????????????????????????

Dominik [7]

4 days = 96 hours.......

5 0

2 years ago

The graph of quadratic parent function fwas transformed to create the graph of

Margarita [4]

H is the correct answer. Y= (x+2)^2-5
2 to the left x+2=0 x=-2
5 dpwn

3 0

2 years ago

An engineering student is studying the effects of cryogenic treatments on a particular material. The treatment involves cooling

kvv77 [185]

The true statement about the graph from the attached image below is: The material's temperature reaches a minimum at 15 hours.

<h3>What is the parabolic graph of the quadratic equation?</h3>

The parabolic graph is a curved U-shaped graph that is established from a quadratic equation.

The parabola of the graph can be downward creating a maximum or upward (minimum).

From the given image, the correct interpretation shows that as a result of cryogenic treatment, the material's temperature reaches a minimum at 15 hours.

Learn more about parabolic graphs here:

brainly.com/question/33428

#SPJ1

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2 years ago

What is the volume of the basement?

bagirrra123 [75]

Volume = Length × Breadth × Height

So you are absolutely right, it is 252 yards squared

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2 years ago