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
vladimir2022 [97]
3 years ago
15

Solve the quadratic function by completing the square 2x^2+8x+14=0

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0

2x^2+8x+14=0 \\\\x^2+4x+7=0\\\\x^2+4x+4+3=0\\\\(x+2)^2=-3\\\\x+2=\sqrt{-3} \vee x+2=-\sqrt{-3}\\\\x=-2+\sqrt3i \vee x=-2-\sqrt3 i

You might be interested in
Need help ASAP please
Neporo4naja [7]
Can someone help me with my most recent question
8 0
3 years ago
Please help
MrRa [10]

Answer:

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 17.

About what percentage of births would be expected to occur within 51 days of the mean pregnancy​ length?

51/17 = 3.

So, within 3 standard deviations of the mean.

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

4 0
3 years ago
What is a reasonable measure for the angle shown?
dimaraw [331]
I would say 120 since it’s not at the end near 170

4 0
2 years ago
Express 10500 in term if it's prime factor
Shkiper50 [21]
2 |  10500
2 !    5250
3 |     2625
5 |       875
5 |       175
5 |         35
             7
The prime factors are  2*2*3*5*5*5*7 or 2^2*3*5^3*7

3 0
3 years ago
The graph of f(x) = |x-h| + k contains the blunts (-6,-2) and (0,-2). The graph has a vertex at (h,-5). Describe how to find the
GuDViN [60]

Answer:

1

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Find the perimeter of a triangle with sides 12inches, 9inches, and 15inches
    8·1 answer
  • We roll a fair die repeatedly until we see the number four appear and then we stop. The outcome of the experiment is the number
    10·1 answer
  • If x -1 = 2y/3,then y=​
    6·2 answers
  • Daniela measures her math book and records its width as 21.9 cm to the nearest tenth of a centimeter. The actual measurement of
    13·1 answer
  • What is the value of y?
    12·2 answers
  • 4x - 5 = 7 solve for X
    9·2 answers
  • 4 pts Question 3 Justify the reason for similarity in the triangles below with a similarity postulate. 9 3 5 15 M AA SSS Not Sim
    15·1 answer
  • The Hawks have 112 games which is 60% of the games they have played this year how many games have the Hawks played this season
    12·1 answer
  • Someone help me with this still im stock on it plz
    11·1 answer
  • Mrs. Vance decided to buy dress shirts for her two sons. She bought her older son a blue shirt for $9.91, and she bought her you
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!