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
Anestetic [448]
3 years ago
15

Find the zeros of x^2+4x=-10 using the quadratic formula

Mathematics
2 answers:
ipn [44]3 years ago
7 0
X^2+4+10=0
x=(-4(+/-)root16-40)/2, so we now know that the zeros are imaginary, because you can't square root a negative number and 16-40 is -24
so the two roots are…
-2+iroot6 and -2-iroot6

Nookie1986 [14]3 years ago
6 0
X² + 4x = 10
x² + 4x - 10 = 10 - 10
x² + 4x - 10 = 0
x = <u>-4 +/- √(4² - 4(1)(-10))</u>
                   2(1)
x = <u>-4 +/- √(16 + 40)</u>
                 2
x = <u>-4 +/ √56
</u>             2<u>
</u>x =<u> -4 +/- √(4 × 14)</u>
               2
x = <u>-4 +/- √4 √14
</u>                2<u>
</u>x = <u>-4 +/- 2√14
</u>              2
x = <u>-4 +/- 2(3.741657387)</u>
                      2
x = <u>-4 +/- 7.483314774</u>
                    2
x = <u>-4 + 7.483314774 </u>   x = <u>-4 - 7.483314774</u>
                   2                                    2
x = <u>3.483314774</u>           x = <u>-11.483314774</u>
               2                                      2
x = 1.741657387           x = -5.741657387

<u />
You might be interested in
A baker uses 3/4 cup of honey in one of his cakes. There are 60 calories in 1/8 cup of honey. What equation would you use to fin
pogonyaev
3/4 = 6/8
so u need 60*6, so
c=60*6 ?
c meaning calories
3 0
3 years ago
Read 2 more answers
LOL Needing help im not very smart XD
earnstyle [38]
12 because it’s 12 :)))))
8 0
3 years ago
Read 2 more answers
7x - y = - 1 + -7x + 3y = - 25
Fittoniya [83]
Hope this helps you out :D

It’s 2 equations so in order to solve the previous system, you can use different methods, as for example substitution or addition of equations. In this case, you use the second one, due to the fact you have 7x in one equation and -7x in the other equation. In this way you can easily eliminate variable x and then solve for y. With the value of y you can replace in any of the two equations and solve for x.

7x-y=-1
-7x+3y=-25

Summarizing, you proceed as follow:
- add up the given equations

7x - y = -1

-7x+3y=-25
——————
0 +2y=-26

- solve for y in the previous equation

2y=-26
y=-26/2
y=-13


- replace the obtained value of y in one of the given equations, and solve for x

7x-(-13)=-1

7x+13=-1

7x=-1-13

7x=-14

x=-14

x=-14/7

x=-2


Hence, the solution of the given systems of equation is:

X=-2

Y=-13

4 0
3 years ago
Which of the following is the graph of y = ex + 1?
AnnZ [28]

Answer:

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Plot the points in the coordinate plane. Then find the perimeter and area of the polygon.
anyanavicka [17]

Answer:

The answer to your question is below

Step-by-step explanation:

See the graph below

Process

1.- Find the distance from A to B, B to C, C to D, A to D

Formula

d = \sqrt{(x2 - x1)^{2} + (y2 - y1)^{2}}

d AB = \sqrt{(1 + 3)^{2} + (6 - 5)^{2}}  = \sqrt{17}

dBC = \sqrt{(-2 -6)^{2} + (3 - 1)^{2}}  = \sqrt{68}

dCD = \sqrt{(-1 - 3)^{2} + (-3 +2)^{2}}  = \sqrt{17}

dAD = \sqrt{(-1 + 3)^{2} + (-3 - 5)^{2}}  = \sqrt{68}

2.- Find the perimeter

Perimeter = 2\sqrt{17} + 2\sqrt{68} = 6\sqrt{17} u

3.- Find the area

Area = \sqrt{17} x \sqrt{68}

Area = \sqrt{17x68} = \sqrt{1156} = 34 u^{2}

7 0
4 years ago
Other questions:
  • On the first day of her fishing trip Jan caught 4 fish On the second day she caught 7 times as many as the family rat dayHow man
    7·1 answer
  • BC is tangent to circle A at B and to circle D at C. AB= 10 BC= 21 DC= 8 find AD to the nearest tenth
    14·1 answer
  • Consider the equation 3p – 7 + p = 13. What is the resulting equation after the first step in the solution?
    13·2 answers
  • What is the slope of each line?
    12·2 answers
  • I just need help with #4
    15·2 answers
  • A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available.
    6·1 answer
  • The shape of a carpet is a semicircle. Use 22 7 as an approximation for π. a) Find its area. b) Janice wants to put a fringed bo
    8·1 answer
  • Heeeeeeeellllpppp wiilll ggiivvee bbrraaiinnlliieesstt
    12·2 answers
  • How many quarts of soil are used to fill 2 flower pots?
    6·1 answer
  • Find the vertical height of given square based pyramid​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!