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xxTIMURxx [149]
3 years ago
13

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

Mathematics
1 answer:
trasher [3.6K]3 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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A certain model of automobile is available in seven exterior colors, three interior colors, and four interior styles. In additio
VikaD [51]

Answer:

336 version

Step-by-step explanation:

To determine the total possible number of combination we will use the product rule

Total numbers of exterior colour 7

Total number of interior colour 3

Total number of interior style 4

Total number of transmission option 2

Total number of engine option 2 therefore the total combination is

7*3 *4*2*2 = 336 possible combination

6 0
3 years ago
Use the intercept formula x a + y b = 1, where a and b are the x- and y-intercepts, respectively, to find an equation of a line
Eddi Din [679]
Just plug em in
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3 0
3 years ago
I need help please, I will give brainliest to the first person that answers. Also extra points.
Papessa [141]

Answer:

B)

a + c = 7

9a + 4c = $43

Step-by-step explanation:

There're 7 tickets which were bough in total. Two different types of tickets, one which represented children, the other for adults. The adult ticket is represented by <em>a </em>and is 9 dollars. The children's ticket is represented by <em>c </em>and is 4 dollars.

<em>Have a nice April Fool's XD.</em>

5 0
3 years ago
Which choice is equivalent to the expression below √-12
kondaur [170]

Answer:

E

Step-by-step explanation:

using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}, hence

\sqrt{-12}

= \sqrt{4(3)(-1)} = \sqrt{4} × \sqrt{3} × \sqrt{-1} [\sqrt{-1} = i]

= 2i\sqrt{3} → E


7 0
3 years ago
Read 2 more answers
If the volume of the pyramid is 72cm, what is its height in cm?
nydimaria [60]

it is b.9 because u have to multiply (w×h×l)/3

5 0
3 years ago
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