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
DochEvi [55]
2 years ago
5

Select the two values of x that are roots of this equation x^2+3x-3=0 Apex

Mathematics
2 answers:
andrew-mc [135]2 years ago
8 0

Answer:

C, and D are both roots of this equation

allochka39001 [22]2 years ago
5 0

Answer:

The two values of x that are roots are:

x_{1} = \frac{-3 + \sqrt{21} }{2}

x_{2} = \frac{-3 - \sqrt{21} }{2}

Step-by-step explanation:

A cuadratic function has the form ax^{2} + bx +c = 0

To calculate the roots of the cuadratic equation x^{2} + 3x -3 = 0 you have to solve the formula:

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

In this case, a =1, b=3 and c= -3

Replacing the values of a,b and c in the formula:

x = \frac{-3}{(2)(1)} ± \frac{\sqrt{(3)^{2} - (4)(1)(-3) } }{(2)(1)}

Solving the mathematic operations:

x = \frac{-3}{2} ± \frac{\sqrt{9 + 12 } }{2}

The two roots are:

x_{1} = \frac{-3 + \sqrt{21} }{2}

x_{2} = \frac{-3 - \sqrt{21} }{2}

You might be interested in
Please help me out:/
WITCHER [35]

Answer:

Step-by-step explanation:

3 0
2 years ago
HEY *25 POINTS* HELP WITH MY ANGLES PLEASE PLEASE
Alekssandra [29.7K]

Answer:

1 D

2

Step-by-step explanation:

8 0
3 years ago
The train station of new york city and burlington, vermont, are approximately 295 miles apart. One train leaves new york for bur
n200080 [17]

Answer:

8:04 am

Step-by-step explanation:

The first train travels 60 miles from 6am to 7am

So at 7am the trains are 455 - 60 = 395 miles apart

First train: Distance from town A (DA) = Velocity* time = 60t

Second train: Distance from town B (DB) = Velocity*time = 70t

So, DA + DB = 60t + 70t

395 = 130t

t = 395/130

= 3.4 hrs

= 3 hrs 4 mins

The first train left at 5am so the exact time would be 8:04am (5am +3 hrs and 4 minutes)

6 0
2 years ago
A plane takes off from a runway and begins its climb. The plane takes off at a constant acceleration of 20 LaTeX: m /s^{2} . Onc
lana66690 [7]

Answer:

The plane have traveled 1512.9 m from the time took off

Step-by-step explanation:

Acceleration a = 20m/s^2

Initial speed = u = 0

Final speed = v = 246 m/s

Time = t = 93

We are supposed to find how far would the plane have traveled from the time took off

We will use equation of motion

v^2=u^2+2as\\(246)^2=2\times 20 \times s\\\frac{(246)^2}{2 \times 20}=s\\1512.9 m=s

Hence The plane have traveled 1512.9 m from the time took off

4 0
2 years ago
I don't know what to do on this problem. Does someone have the answer?
Anarel [89]

Answer:

Hi, hows life going?

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • You are analyzing the survey results tabulated below. The first survey question (yes/no) is whether the respondent is over 40, a
    15·1 answer
  • 4x4 + 32x - 28 = 0<br> whats the answer to this
    7·2 answers
  • In the diagram below, is the perpendicular bisector of JK. Which of the following statements must be true?
    11·1 answer
  • $1950 plus 15% is what
    8·1 answer
  • Which is –3.2 written in the form a/b?<br><br> A. -32/100<br> B. -5/16<br> C. -3/2<br> D. -16/5
    11·1 answer
  • PLEASE HELP!!! i’m taking a test rn and i don’t remember learning this!!!!
    11·1 answer
  • Please answer both of these questions. :) Thank you!
    15·1 answer
  • 5. There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to
    8·1 answer
  • Under his cell phone plan, Nathaniel pays a flat cost of $41 per month and $4 per gigabyte. He wants to keep his bill at $45.80
    6·1 answer
  • Can someone help me pls
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!