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
Furkat [3]
4 years ago
14

Which of the following is a solution of x^2 + 4x = −8?

Mathematics
1 answer:
8090 [49]4 years ago
8 0
X²+4x+8=0
use the quadratic formula: (sorry cannot type it here)
√(b²-4ac)=√(4²-4*1*8)=√(16-32)=√(-16)=+/- 4i
x=(-4+4i)/2 or (-4-4i)/2
x=-2+2i or x=-2-2i
the answer is A

You might be interested in
A recipe for a large batch of brownies uses one kilogram of sugar. Another recipe uses 800 grams of flour. How much sugar is nee
Nady [450]
1,600 800+800=1,600 this is your answer
7 0
3 years ago
Find the solution to the system of equations. You can use the interactive graph below to find the solution. { y = x − 4 y = 4 x
kumpel [21]

ANSWER

x=-2,y=-6

EXPLANATION

First equation:

y = x - 4

Second equation:

y = 4x + 2

Let us equate the two equations and solve for x.

This implies that;

4x + 2 = x - 4

Group similar terms to obtain:

4x - x =  - 4 - 2

Simplify:

3x =  - 6

Divide both sides by 3

x =  - 2

Put x=-2 into any of the equations.

I will put x=-2 into the first equation:

y =  - 2 - 4

This implies that,

y =  - 6

7 0
3 years ago
Read 2 more answers
The image below, what is true about angles 1, 2, and 3?
ziro4ka [17]

Answer:

C. 2 = 37

Step-by-step explanation:

<2 and 37 are vertical angles and vertical angles are equal

Angle 1 and 37 form a straight line so they add to 180

<1 + 37 = 180

<1 = 180-37 = 143

Angle 3 and 37 form a straight line so they add to 180

<3 + 37 = 180

<3= 180-37 = 143

6 0
3 years ago
Read 2 more answers
Convert the following angle to decimal degree. a=137DEGREES 38' 44"
Norma-Jean [14]
137hahahahacan this be a free.
4 0
3 years ago
A company’s board of directors wants to form a committee of 3 of its members. There are 4 members to choose from. How many diffe
Ugo [173]

Answer:

4

Step-by-step explanation:

There are 4 board members and 3 committee members. You can solve this using combinations:

4C3 = 4!/(3!(4-3)!) = 4!/(3!1!) = 4

You can also solve this by recognizing that since there is one fewer committee spot than there are board members, there will be one possible committee excluding each of the 4 board members.

4 0
4 years ago
Other questions:
  • Nick's telephone company charges $0.07 per minute for weekend calls and $0.08 per minute for calls made on weekdays. This month
    14·1 answer
  • 2x-4=10 reverse order algebra
    9·1 answer
  • Solve the inequality. y/-6 &gt; 10 .<br> a. y -60<br> c. y &gt; 4<br> d. y
    13·2 answers
  • Change to decimals.<br> 1. 75%
    12·1 answer
  • A rectangle has a length that is increasing at a rate of 10 mm per second with the width being held constant. What is the rate o
    6·1 answer
  • What is the interest earned on $400 invested at the rate of 6% for one year?
    7·1 answer
  • Suns the value of m, rounded to the nearest tenth
    13·1 answer
  • Someone help me please
    12·1 answer
  • -11x-4&gt;-15
    15·2 answers
  • Sam needs a bowll to mix her punch. She has a 2-cup bowl, a 4-cup bowl, and a 6-cup bowl. What is the smallest bowl Sam can use
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!