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
Len [333]
3 years ago
15

What are the solutions (coordinate points) to the system of equations?

Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0

Answer:

x=0,-2

Step-by-step explanation:

Solve the solution by equaling them to each other and solve for x.

x^2+5x+6=3x+6

x^2+5x-3x+6-6=0

x^2+2x=0 (factor out one x)

x(x+2)=0

x has two solutions since there are two options of solving.

1. x=0/(x+2)

  x=0

2. x+2=0/x

   x+2=0

   x=-2

You might be interested in
anna is watching a space shuttle launch 6 miles from cape canaveral in Flordia. When the angle of elevation from her viewpoint t
juin [17]
The answer is 34 little bird . 
8 0
3 years ago
9.39 as mixed number
AveGali [126]
9 and 39/100 or 9 and 390/1000
4 0
3 years ago
Explain how you use substitution to solve a system of linear equations.
Marianna [84]
The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.
7 0
3 years ago
Read 2 more answers
If all of the diagonals are drawn from a vertex of a hexagon, how many triangles are formed?
Elan Coil [88]
If we consider it as a combination problem, then we could calculate the how many combinations are there if we pick up three nodes out of six nodes, and then we have:
C_{6}^{3}= \frac{6*5*4}{3*2*1}  =20
And the answer should be 20
5 0
3 years ago
Read 2 more answers
More Information From the Online Dating Survey A survey conducted in July 2015 asked a random sample of American adults whether
svet-max [94.6K]

Answer:

90% confidence interval for the proportion of all US adults ages 55 to 64 to use online dating is [0.095 , 0.148].

Step-by-step explanation:

We are given that a survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating.

The survey included 411 adults between the ages of 55 and 64, and 50 of them said that they had used online dating.

Firstly, the pivotal quantity for 90% confidence interval for the population proportion is given by;

                                P.Q. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of adults who said that they had used online dating =  \frac{50}{411}  = 0.122

n = sample of adults between the ages of 55 and 64 = 411

p = population proportion of all US adults ages 55 to 64 to use online dating

<em>Here for constructing 90% confidence interval we have used One-sample z proportion statistics.</em>

<u>So, 90% confidence interval for the population proportion, p is ;</u>

P(-1.645 < N(0,1) < 1.645) = 0.90  {As the critical value of z at 5% level

                                                  of significance are -1.645 & 1.645}  

P(-1.645 < \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } < 1.645) = 0.90

P( -1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } < {\hat p-p} < 1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } ) = 0.90

P( \hat p-1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } < p < \hat p+1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } } ) = 0.90

<u>90% confidence interval for p</u> = [\hat p-1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }, \hat p+1.645 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }]

= [ 0.122-1.645 \times {\sqrt{\frac{0.122(1-0.122)}{411} } } , 0.122+1.645 \times {\sqrt{\frac{0.122(1-0.122)}{411} } } ]

 = [0.095 , 0.148]

Therefore, 90% confidence interval for the proportion of all US adults ages 55 to 64 to use online dating is [0.095 , 0.148].

7 0
3 years ago
Other questions:
  • A plane flew a total of 2,220 miles.Its average speed was 555 miles per hour.How many hours did the plane fly?
    13·2 answers
  • PLEASE IT IS URGENT I AM BEING TIMED HELP HELP
    12·1 answer
  • How do I solve these?
    10·2 answers
  • A recipe calls for 1/4 cup of flour.Carter only a measurement cup that holds 1/8 cup. How can carter measure the flour he needs
    14·2 answers
  • Hellp please!!!!!!!​
    12·1 answer
  • En la resolución de problemas para verificar la respuesta se debe de tener en cuenta el resultado y los datos desconocidos verda
    12·1 answer
  • 21 − 3 ) ÷ 32 =<br> 72 × ( 6 ÷ 3 ) =<br> 17 + 15 ÷ 3 − 24 =<br> ( 8 + 56 )÷ 4 − 32 =
    14·1 answer
  • You are giving a rectangle with dimensions of: length = 60 inches and width = 4j. The perimeter of the rectangle is 400 inches.
    15·1 answer
  • I am so lost at this one...pls
    12·1 answer
  • W
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!