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krek1111 [17]
3 years ago
5

What is X when X² -5X equals negative 20

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
5 0

Answer:

x=(5+sqrt(55)i)/2, (5-sqrt(55)i)/2.

Step-by-step explanation:

x^2-5x=-20

x^2-5x-(-20)=0

x^2-5x+20=0

Apply the quadratic formula.

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Lin uses an app to graph the charge on her phone.
exis [7]

Answer:

  • See below

Step-by-step explanation:

<u>Use the graph to answer the following questions:</u>

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eimsori [14]
I’m on the same question
3 0
3 years ago
More help is appreciated:))
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Step-by-step explanation:

You need to translate all the points to the right 3 and up 6

Therefore, you are going to use this formula:

(x,y) ⇾ (x + 3, y + 6)

This is the same format as the previous problem, if you have noticed.

Using this, plug in each coordinate, starting with  P (5, -1)

(5, -1) ⇾ ( 5 + 3, -1 + 6)

(5, -1) ⇾ ( 8, 5 )

P^{1} = (8, 5)

Now point Q, (0, 8)

(0, 8) ⇾ (0 + 3, 8 + 6)

(0, 8) ⇾ ( 3, 14 )

Q^{1} = (3, 14)

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(7, 5) ⇾ (7 + 3, 5 + 6)

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R^{1} = (10, 11)

Therefore, P^{1} = (8, 5), Q^{1} = (3, 14), R^{1} = (10, 11) is your answer. This is the 4th option or D.

Hope this for you to understand this a bit more! =D

6 0
3 years ago
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