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Goshia [24]
3 years ago
14

Elect the correct answer. What are the solutions of this quadratic equation?

Mathematics
1 answer:
zvonat [6]3 years ago
6 0

Answer:

Rewrite equation as:

x^2 + 2x +2 =0

a = 1 b = 2 c = 2

x = (-b +- sqr root (b^2 -4ac)) / 2a

x = (-2 +- sqr root (2^2 - 4*1*2) ) / 2

x = (-2 +- sqr root (4  - 8) ) / 2

x = (-2 + sqr root (-4) ) / 2

x = -1 +- i

Step-by-step explanation:

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The capacity of a jug is 6L. Kerry needs 5L of juice for a party. how many jugs will she have to make?
zimovet [89]

Answer:

One

Step-by-step explanation:

Given data

The capacity of Jug= 6L

Needed capacity of Juice= 5L

Hence  one Jug of Juice will be enough because one jug of juice will cover for 6L and 1 L will actually remain

5 0
3 years ago
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vfiekz [6]

Answer:

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Step-by-step explanation:

hope this helps

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3 years ago
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Find x. (Use pic for more info)
V125BC [204]

Answer:

x=75

Step-by-step explanation:

Hey There!

If you didn't know the exterior angle of a triangle is equal to the sum of the opposite interior angles of a triangle

So essentially what I'm saying is that

2x-5=70+x

step 1 add 5 to each side

-5+5 cancels out

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now we have

2x=70+x

step 2 subtract x from each side

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8 0
3 years ago
a class has 20 trays of paint each trays has 6 colors 1 of the color is red what fraction of the colors in the 20 trays is red
Molodets [167]

Answer: it is 1/6

You can solve by saying, 1 out of 6 in each tray is red, so my fraction should be 1/6.

It doesn't matter the amount of trays because the pattern is always the same.

But if you want to check it out you can do it in this way.

You know there is 1 red color per tray, if there are 20 then you'd have 20 of them, in each tray there are 6 colors so the total is 120.

Now you solve it if there are 20 red colors out of 120 them the answer is 20/120, thus you get 1/6

Step-by-step explanation:

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Answer:

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