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xxTIMURxx [149]

4 years ago

13

Can a cubic equation have 3 complex roots? 3 real roots? ...?

1 answer:

trasher [3.6K]4 years ago

7 0

No, a cubic equation can not have three complex roots. This is because it turns twice and one end goes to positive infinity and one end goes to negative infinity. Thus, one of these MUST cross the x-axis at some point, meaning y = 0 and a real root exists.

Yes, a cubic equation can have three real roots if it cuts the x-axis three times.

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Klara bought a dozen bags of bird food for $27. Use compatible numbers to find the approximate cost of six dozen bags of bird fo

Minchanka [31]

X=cost of bird food
dozen=12

12x=27
x=$9/4=2.25 dollars per bag

6 dozen=6×12=72bags
2.25×72= $162

8 0

4 years ago

The angles of a qaudileteral are x,2x,100 and 110 degress find the value of 2x

Naya [18.7K]

Step-by-step explanation:

Hey there!!!!

We generally sum up all the angles to get 360° as per given in our question.

Here, in your question, we have values as,

x, 2x, 100°, 110°.

(We have 360° as the sum quadrilateral).

So, x° + 2x° + 100°+110° = 360°

3x°+210°= 360°

3x° = 360° - 210°

or, 3x° = 150°

$x = \frac{15 0 }{3}$

Therefore the measure of 2x is (2×50)°=100°.

<em><u>Hope</u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

8 0

4 years ago

Read 2 more answers

Pythagoras thereom ? help

Nutka1998 [239]

It looks like you have to do distance formula. It's basically this:

D = $\sqrt{(y_{2}-y{1})^{2} + (x_{2}-x{1})^{2} }$ (ignore the A, i dont know how to get rid of it sorry)

I would then plug in the points of A(1,7) and B(10,3).

D = $\sqrt{(7-3)^2 + (10-1)^2 }$

Then I would get the square root of 4^2 + 9^2

= square root of 16 + 81

= square root of 97

So the length of AB would be the square root of 97

4 0

4 years ago

What would 2300 divided by 330 times 3 epuals what ?

Amanda [17]

Answer: 23

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Please find the least common denominator for 3/8 <br> 5/12

andriy [413]

Answer:

24

Step-by-step explanation:

Given two fractions $\frac{3}{8}$ and $\frac{5}{12}.$

Factor the denominators of both fractions:

$8=2\cdot 4=2\cdot 2\cdot 2\\ \\12=2\cdot 6=2\cdot 2\cdot 3$

You can see that two digits 2 are the same in both denominators and there are two more factors: 2 in number 8 and 3 in number 12.

Thus, the least common denominator for $\frac{3}{8}$ and $\frac{5}{12}$ is

$2\cdot 2\cdot 2\cdot 3=24$

7 0

4 years ago