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
aleksklad [387]
3 years ago
9

The positive solution to the equation x^2- 4 = 6

SAT
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

In the form of a+\sqrt{b},

  • a = 3
  • b = 13

Explanation:

The equation can be rewritten as:

x^{2} -6x-4=0

Find the solutions using the quadratic formula:

  • a = 1
  • b = -6
  • c = -4

x=\frac{-b+-\sqrt{b^{2}-4ac} }{2a} \\\\=\frac{-(-6)+-\sqrt{(-6)^{2} -4(1)(-4)} }{2(1)} \\\\=\frac{6+-\sqrt{36+16} }{2} \\\\=\frac{6+-\sqrt{52} }{2} \\\\=\frac{2(3)+-2\sqrt{13} }{2} \\\\=\left \{ {{x_{1}=3+\sqrt{13} } \atop {x_{2}=3-\sqrt{13} }} \right.

Find the solution that's positive:

\left \{ {{x_{1} = 3+\sqrt{13} = 6.605551275... } \atop {x_{2} = 3-\sqrt{13} = -0.605551275... }} \right

Therefore, the solution would be 3+\sqrt{13}.

In the form of a+\sqrt{b},

  • a = 3
  • b = 13
You might be interested in
What is p at the point of equilibrium, to the nearest tenth?
const2013 [10]

Answer:ssssbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Explanation:sssbbbbbbbbbbbbbbbbbbbb

ssssbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

4 0
3 years ago
Simon is a single individual and wants to sign up for the standard plan being offered by his employer. He plans to use in-networ
ASHA 777 [7]

The statement that is true of simon as an individual is; C: His annual deductible will be $800.

<h3>What is In-network Insurance?</h3>

For in - network insurance, we know the following facts;

  • Charged a lower copayment rate after deductible.
  • Incur a relatively low out-of-pocket amount.
  • Have a relatively low annual deductible.

Now, in-network physicians help to reduce the cost of insurance to the individual and as a result, what is most likely going to happen is that Simon  will have an annual deductible of $800 and is less likely that he will not pay anything after meeting this annual deductible.

The missing options are;

a. The cost of his annual physical will be 50% after deductible

b. The maximum amount that he can expect to pay out-of-pocket is $6,000.

c. His annual deductible will be $800.

d. Once he hits his annual deductible of $800, he will incur no additional costs for health care services for the rest of the calendar year.

Read more about in-network insurance at; brainly.com/question/26278533

3 0
2 years ago
Anybody want to be friends ? and what is 2-9x9=?
vekshin1

Answer:

-63

Explanation:

2 - 9 = -7

-7 x 9 = -63

4 0
3 years ago
Read 2 more answers
Who is required by the GDL law to wear a seat belt in the vehicle?
KatRina [158]

Answer:

Humans

Explanation:

6 0
3 years ago
Use a linear approximation (or differentials) to estimate the given number. (round your answer to five decimal places. ).
anyanavicka [17]

ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂ψ✫ナ❂

5 0
3 years ago
Other questions:
  • There are ___ questions in the English section of the aspire test
    9·2 answers
  • A man drove to work at an average rate of speed 60 miles per hour and
    15·1 answer
  • Define a pattern of art
    6·1 answer
  • What sound would be the scariest if you could hear it?
    12·2 answers
  • PLEASEEE HELPPP ASAP I WILL GIVE BRAINLSIT There is pollution that has spilled into a lake. Explain why the birds who live on th
    8·1 answer
  • For a population with a mean of μ=45 and a standard deviation of σ=10,
    12·1 answer
  • Which situation best illustrates an effect of the law of demand
    12·1 answer
  • PLS HELP ME NOW
    13·1 answer
  • Background informationexcerpt like most politicians of the early 19th century, president andrew jackson believed that the rights
    11·1 answer
  • Knowledge is the ability to use wisdom.<br><br><br> True or False
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!