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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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The vagabonds were 200 miles apart at 2 p.M and were headed toward each other if they met at 6 p.M and one was traveling 10 mile
muminat

Answer:

<em>The answer is 200</em>

Step-by-step explanation:

<em>To solve the question given, let us recall the following,</em>

<em>Let r4=200  miles apart</em>

<em>r=50 mph combined speed </em>

<em>Where </em>

<em>2f+10=50 </em>

<em>2f=40 </em>

<em>f=20 </em>

<em>f+10=30 </em>

<em>or we can express it in another way,</em>

<em>which is</em>

<em>f x4+(f+10)x 4=200 </em>

<em>f x4+f x4+40=200 </em>

<em>8f+40=200</em>

<em>Then</em>

<em>8f is =160 </em>

<em>f=20 </em>

<em>f+10=30 </em>

<em>Therefore,</em>

<em>4x 20+4 x 30=200 </em>

<em>80+120=200 </em>

<em>200=200</em>

<em />

8 0
2 years ago
Read 2 more answers
B
sergey [27]

Answer:80

Step-by-step explanation:

3 0
2 years ago
A company sells two versions of an antivirus software. The home edition costs $23.50, and the business edition costs $58.75. Las
Kamila [148]

Answer:

x + y = 745

23.50x + 58.75y = 29,668.75

Step-by-step explanation:

Since 745 copies were sold and  x represents the number of copies of the home edition sold and y represents the number of copies of the business edition sold:

x + y = 745

Since the home edition costs $23.50, and the business edition costs $58.75:

The money earned from home edition is = 23.50x

The money earned from business edition is = 58.75y

Since the company earned $29,668.75:

23.50x + 58.75y = 29,668.75

6 0
3 years ago
Express the confidence interval 0.777 ộHE = +0
Lostsunrise [7]
He’s right For the answer
6 0
3 years ago
Help please it’s algebra
amid [387]

Answer:

I'm not sure, but I think they spend 2$ for each

Step-by-step explanation:

The total items they buyed was 45. The total amount of money they spend was 95. 95 divided by 45 is 2.111111111111111111111 . So if you find 2 as one of your options, that's probably it.

8 0
2 years ago
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