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
Dovator [93]
3 years ago
7

Solve for x: (x^2+2x)+x+2=0

Mathematics
2 answers:
castortr0y [4]3 years ago
5 0

Answer:

x=-5

Step-by-step explanation:

(x^{2} +2x)+x+2=0\\(3x^{2} )+x+2=0\\3x^{2} +x=-2\\9x+x=-2\\10x=-2\\x=-5

Hope This Helps!!!!!

anyanavicka [17]3 years ago
3 0

Answer:

x=-1 or  x=-2

Step-by-step explanation:

Given Equation:

(x^2+2x)+x+2=0

Solving the like terms:

x^2+2x+x+2=0\\\\x^2+3x+2=0

Solving the quadratic equation using Factorization Method:

x^2+x+2x+2=0

Taking common from the equation to make the factors:

x(x+1)+2(x+1)=0\\\\(x+1)(x+2)=0\\\\x+1=0\\\\x=-1\\\\OR\\\\x+2=0\\\\x=-2

The solution of the equation is:

x=-1 or  x=-2

You might be interested in
Help me please asap im begging
Mila [183]

Answer: 4

Step-by-step explanation: :)

5 0
2 years ago
The average of four numbers is 85. If three of the numbers are 76, 78, and 81, what is the
valkas [14]
The fourth number would be 105 like 98% sure
8 0
2 years ago
Read 2 more answers
Can you help me with these 3?
miskamm [114]

Step-by-step explanation:

1. 5,11,17,23,29,35

Common difference is 6

3. 8,21,34, 47,60

Common difference is 13

5. 5,10,15,20,25

Common difference is 5

3 0
3 years ago
Can someone help me with this question?
KonstantinChe [14]
-3. Put the two equation equal to each other and solve. 
4x+18=2x+12
-2x=-2x 
2x+18=12 
-18=-18 
2x=-6 
2x/2=-6/2
x=-3
8 0
3 years ago
a statistics professor finds that when he schedules an office hour at the 10:30a, time slot, an average of three students arrive
Veseljchak [2.6K]

Answer:

The probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

Step-by-step explanation:

Let <em>X</em> = number of students arriving at the 10:30 AM time slot.

The average number of students arriving at the 10:30 AM time slot is, <em>λ</em> = 3.

A random variable representing the occurrence of events in a fixed interval of time is known as Poisson random variables. For example, the number of customers visiting the bank in an hour or the number of typographical error is a book every 10 pages.

The random variable <em>X</em> is also a Poisson random variable because it represents the fixed number of students arriving at the 10:30 AM time slot.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 3.

The probability mass function of <em>X</em> is given by:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,3...,\ \lambda>0

Compute the probability of <em>X</em> = 2 as follows:

P(X=2)=\frac{e^{-3}3^{2}}{2!}=\frac{0.0498\times 9}{2}=0.2241

Thus, the probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The equation y = 11x describes the amount of money Louis earns, where x is the number of hours he works and y is the amount of m
    5·1 answer
  • Beach Cruises prints brochures and fliers to advertise their dolphin watching tours. To print, the brochure requires three pages
    14·1 answer
  • Using the digits 1 to 9 at most one time each, fill in the boxes to make the equality true:
    12·1 answer
  • Marvin spent 2.8 hours which is 35% of his time at the recreational center playing ping pong. How long was Marvin at the recreat
    10·1 answer
  • What's the dimensions of the square<br><br> Area = 441 cm²
    10·1 answer
  • -18-3 what's the answer
    11·2 answers
  • The smallest of three consecutive odd is numbers is n. If their sum is 27,find the three numbers
    14·1 answer
  • 2c(b+15c)+(b–6c)(5c+2b)
    12·1 answer
  • Explain how to tell weather an event is as likely as not
    13·1 answer
  • A contest is being held at a school fair for seventh-grade
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!