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
Vika [28.1K]
2 years ago
14

9-4 skills practice solving quadratic equations by completing the square

SAT
1 answer:
Len [333]2 years ago
5 0

Answer:

By doing it only once

Explanation:

To find the roots of the equation we can simply use the quadratic formula but in certain cases like finding domain/range of a function in the form  ax2+bx+c  , converting it to  a(x+d)2+e  makes it simpler to solve as x appears only once.

You might be interested in
I need help!<br> ~Brainliest to you~<br> Hurry up
daser333 [38]

Answer: B

<u>Explanation:</u>

           rate    x    time

Chris:   40     x       t      = 40t

Amy:    60     x     t - 2   = 60(t - 2)

Use the distance formula:

d = \sqrt{(Chris)^{2}+(Amy)^{2}}

300 = \sqrt{(40t)^{2}+(60(t - 2))^{2}}

*****************************************************************************

Answer: B

<u>Explanation:</u>

  x² - 8x + 19

a=1  b=-8  c=19

Use the Quadratic formula to find the solutions for x:

x = \frac{-b +/- \sqrt{b^{2}-4ac}}{2a}

  = \frac{-(-8) +/- \sqrt{(-8)^{2}-4(1)(19)}}{2(1)}

  = \frac{8+/- \sqrt{64-76}}{2}

  = \frac{8+/- \sqrt{-12}}{2}

  = \frac{8+/- 2i\sqrt{3}}{2}

  = \frac{2(4+/- i\sqrt{3})}{2}

     = 4 ± i√3

Solutions are:                  Factors are:

x = 4 + i√3                       x - (4 + i√3) = 0

x = 4 - i√3                       x - (4 - i√3) = 0


8 0
3 years ago
Read 2 more answers
Read the excerpt from the report compiled by the manhattan engineer district of the united states army published june 29, 1946,
GenaCL600 [577]

The statement that best describe the terror that Japanese people experienced after the bombings is that "the atomic bomb led to massive death & casualties of citizen and that the radio-activities hurt them for many years.

<h3>What led to the Hiroshima and NagasakI bombing?</h3>

The bombing was an action done by U.S. government to prevent the imminent invasion of the Japanese army into U.S.

In conclusion, the statement that best describe what the terror that Japanese people experienced after the bombings is that "the atomic bomb led to massive death & casualties of citizen and that the radio-activities hurt them for many years.

Read more about Japanese bombing

<em>brainly.com/question/492664</em>

3 0
3 years ago
A detrital rock is named according to the color of the sediments. T F
Sedbober [7]
False they are named according to shape and size
8 0
3 years ago
Read 2 more answers
One-year-old sydney cries when his father hands him to an unfamiliar babysitter and leaves the room. Sydney’s reaction is a resu
Elena L [17]

Answer: Baby Rafael cries when his mother leaves him with a new babysitter separation anxiety

Explanation:

hope this helps

5 0
2 years ago
In florida, the class e driver license is for drivers of _____.
BlackZzzverrR [31]

Answer:

personal vehicles

Explanation:

like an automobile

6 0
2 years ago
Other questions:
  • What is the sientific name for the layer of gas that sarounds the earth?
    14·1 answer
  • In quadrilateral $ABCD$, we have $AB=3,$ $BC=6,$ $CD=4,$ and $DA=4$. If the length of diagonal $AC$ is an integer, what are all
    13·2 answers
  • This is when you recieve free money for college after applying to colleges
    11·2 answers
  • Am i cool? or am i 45
    14·1 answer
  • Why are millions of dollars a year spent on advertising?
    10·1 answer
  • When you are about to make a turn in direction of a lighted green arrow, which of the following is true?.
    14·1 answer
  • Match each sentence with the type of dependent clause it includes.
    14·1 answer
  • If mc004-1. Jpg is the inverse of mc004-2. Jpg and f (x) = 4 x + 12, what is mc004-4. Jpg?.
    11·2 answers
  • coming into the 1980 election, one reason many americans were frustrated with president carter’s administration was
    7·1 answer
  • which of the following set of quantum numbers (ordered n, ℓ, mℓ, ms) are possible for an electron in an atom?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!