1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11Alexandr11 [23.1K]
3 years ago
5

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0

Answer:

Step-by-step explanation:

A discriminate of -8 is never going to give you a real root. D is wrong

You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.

So the answer is B. You have 2 complex roots.

You might be interested in
20 POINTS
zysi [14]

Answer:

I think they are all letter A

Step-by-step explanation:

6 0
3 years ago
An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes, to the nearest
VikaD [51]

Answer:

  22.1 grams

Step-by-step explanation:

At the end of each minute, (1 -17.1%) = 82.9% of the element remains. At the end of 19 minutes, the quantity has been multiplied by that value 19 times, so the remaining amount is ...

   (780 g)(0.829^19) ≈ 22.1 g

After 19 minutes 22.1 grams remain.

3 0
3 years ago
After how many hours was the temperature at<br> 20 degrees F? Enter only the number.
enyata [817]

Answer:

65

Step-by-step explanation:

5 0
2 years ago
Jonas and Norma's restaurant bill comes to $23.40. They are planning to tip the waiter 15% of there bill. How much money should
Brums [2.3K]
They should leave $3.51 for a tip.  So half of $23.40 is $11.70, half of $11.70 is $5.85, and then a fifth of $5.85 is $1.17, then multiply $1.17 by 3.
8 0
3 years ago
Read 2 more answers
HELP ME PLEASE!!!I NEED HELP!!
Naily [24]

Answer:

Must be recipe b.........

4 0
2 years ago
Other questions:
  • If Harriet rolls the number cube 39 times how many times can she expect to roll a 3 or 4?
    15·2 answers
  • TREC is a rectangle. What is the length of ET?
    7·1 answer
  • Please help me !!
    6·2 answers
  • Question 3 Please. I'm really stuck :(
    13·2 answers
  • What if the exact answer in terms of 3.14
    14·1 answer
  • The table below shows the quantities of onions consumed
    10·1 answer
  • the ratio of the number of womens shoes to the number of mens shoes in a shoe store is 12:7. What fraction of the shoes are mens
    10·2 answers
  • 9. Solve the equation. (1 point)<br> 4x = 68<br><br> 64<br> 72<br> 12<br> 17
    9·1 answer
  • Square the Monomials<br><br> (-7a^3b^5)^2 <br> - (9a^4bc)^2
    8·1 answer
  • HELP ASAP
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!