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
tatiyna
3 years ago
6

Find the discriminant and the number of real roots for this equation. x2 + 2x + 7 = 0

Mathematics
1 answer:
zavuch27 [327]3 years ago
8 0

Answer:

Discriminant = -24

No real roots.

Step-by-step explanation:

x^2 + 2x + 7 = 0

The discriminant = b^2 - 4ac

= 2^2 - 4*1*7

= -24

So there are no real roots.

You might be interested in
What is this answer?
Elan Coil [88]
The answer will be 12/32
5 0
3 years ago
Is this correct ? check plsss...
d1i1m1o1n [39]
This looks one hundred percent correct to me and to check your answer you can plug in the answer you find to the first equation 


17=37+4f 
17=37+4(-5)
17=37-20
17=17 

great job!!
7 0
3 years ago
Read 2 more answers
One winter day, the temperature ranged from a high of 20 F to a low of -25 F. By how many degrees did the temperature change?
AleksandrR [38]
You would do 20-(-25) which would make it 20+25 so the answer is 45 degrees
8 0
3 years ago
Which number is irrational?<br> A. 2.9<br> B. 17<br> C.-3.1415<br> D.3/11
Masja [62]

Answer:

Answer is C

Step-by-step explanation:

-Non terminating

-Non repeating

So it's irrational. You can find out which decimal are irrational by seeing if they end or if they repeat with a number. 2.9 terminates, 17 terminates, and 3/11 (0.2727...) doesn't terminate but repeats, so they're all rational

3 0
3 years ago
Read 2 more answers
Simplify the expression 8x^2y^2/10 x^2y^3 and the missing terms. The simplest form of 8x^2y^2/10x^2y^3 has in the numerator and
lilavasa [31]

Answer: 2/5y

Step-by-step explanation:

\frac{8x^{2}y^{2} }{10x^{2}2y^{3}} = \frac{(2)(2)(2)xxyy}{(5)(2)(2)xxyyy}

remove common factors on top and bottom

= 2/5y

6 0
4 years ago
Other questions:
  • What is the solution to the system of equations? 6 x + 2 y = 6. 7 x + 3 y = 5. (Negative 3, 2) (Negative 1, 6) (2, Negative 3) (
    14·1 answer
  • Solution for x 50=7x-6
    7·2 answers
  • 10. Broderick had $420 in his checking account. He made 6 deposits of $35.50 each.
    13·1 answer
  • A cube has a surface area of 216 square inches. what is the edge length of the cube?​
    15·1 answer
  • Which type of transformation must have occurred in order to map triangle RST to its image, triangle R’S’T’?
    15·2 answers
  • CORRECT AND GET 20 POINTS AND BRAINLIEST!
    12·1 answer
  • Solve
    12·2 answers
  • The Venn diagram shows event A and event B comprised of outcomes from the same sample space. The probability of event A is given
    6·1 answer
  • 1. In a bag there are 3 red marbles, 2 yellow marbles, and 1 blue marble. What is the percent chance of a yellow marble being se
    8·2 answers
  • A 381 foot cable runs from the top of a radio tower to a skate in the ground. If it hits the ground 167 feet from the base of th
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!