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
Can someone please help me with 15?
Feliz [49]

the answer is m=17

https://photomath.net/s/argDe9 shows how to get there

4 0
3 years ago
The cost of renting a video game is $4 per
Leya [2.2K]

Answer:

3

Step-by-step explanation:

4x3=12

7 0
3 years ago
Read 2 more answers
Find the measure of an interior angle and exterior angle of a regular 24gon
Julli [10]

Answer:

Interior Angle: 165°

Exterior Angle: 15°

Step-by-step explanation:

So first you have to find the sum of all interior angles of a polygon with <u>24 sides</u>. This can be found using the formula:

sum = ( <em>n</em> - 2 ) * 180°     where '<em>n</em>' is the number of sides.

When '<em>n</em> = 24' then the sum is:

sum = ( 24 - 2 ) * 180°

Simplify and solve.

sum = 22 * 180°

sum = 3960°

Since there are 24 sides to the polygon, there are 24 interior angles. <u>Assuming that this polygon is equilateral</u>, you can surmise that:

<em>Interior Angle</em> = sum° / <em>n</em>   where n is the number of sides,

3960° / 24 = 165° = Interior Angle

Using that information, and combine it with the [Supplementary Angles Theorem] the exterior angle can be found by:

165° + x = 180°

Solve for x.

8 0
3 years ago
The domain of a function is? When it includes all real numbers
Ray Of Light [21]
Domain is x values... Y is y values

6 0
3 years ago
Please help me on this one would be great help.
dusya [7]
T = 60

please mark me brianliest
8 0
2 years ago
Read 2 more answers
Other questions:
  • WILL GIVE BRAINLIEST!!!! Which choice is this explicit formula for the following geometric sequence
    12·1 answer
  • Solve for x please 10 points
    10·2 answers
  • The first three terms of an arithmetic sequence are as follows.
    12·1 answer
  • 4. what is the equivalent degree measure for pi/6 radians?
    15·1 answer
  • In one town, 4% of 18-29 year olds own a house, as do 21% of 30-50 year olds and 55% of those over 50. According to a recent cen
    10·1 answer
  • Please help need answer now!!
    6·1 answer
  • The equations y+x^2+6x+8 and y =(x+2) (x+4) both define the same quadratic function. Without graphing, identify the x- and y-int
    15·2 answers
  • Use vertex (h, k) and a table of values g(x) = 2 * (x - 2) ^ 2 + 5
    8·2 answers
  • 12. The lowest temperature on a winter
    5·1 answer
  • I need help with this question please. (P.S look at the screenshot)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!