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
Ratling [72]
3 years ago
10

Which two values of x are roots of the polynomial below x^2+3x-5

Mathematics
2 answers:
Elenna [48]3 years ago
8 0

Answer:

Step-by-step explanation:

Given a quadratic equation

ax^2+bx+c=0  

you can find its solutions with the following formula:

x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}  

You equation is identified by the coefficients

x^2 - 3x + 5 \iff a = 1,\ b = -3,\ c = 5  

Which means the solutions are

\dfrac{3 \pm \sqrt{9-4\cdot 5}}{2} = \dfrac{3 \pm \sqrt{-11}}{2}

Furkat [3]3 years ago
5 0

Answer:  the answers are B and D

Step-by-step explanation:

Because I have done this already :)

You might be interested in
Find the value of x. The diagram is not to scale.
tester [92]
X=15 its simple since there's base angles and straight angle
7 0
3 years ago
Read 2 more answers
A(3,4) and B(-3,2) are pointd on a coordinate plane. find the coordinate of a points C on the x axis such that AC=BC​
mr Goodwill [35]

Answer:

Step-by-step explanation:

Here's the game plan. In order to find a point on the x-axis that makes AC = BC, we need to find the midpoint of AB and the slope of AB. From there, we can find the equation of the line that is perpendicular to AB so we can then fit a 0 in for y and solve for x. This final coordinate will be the answer you're looking for. First and foremost, the midpoint of AB:

and

Now for the slope of AB:

and

 So if the slope of AB is 1/3, then the slope of a line perpendicular to that line is -3. What we are finding now is the equation of the line perpendicular to AB and going through (0, 3):

and filling in:

y - 3 = -3(x - 0) and

y - 3 = -3x + 0 and

y - 3 = -3x so

y = -3x + 3. Filling in a 0 for y will give us the coordinate we want for the x-intercept (the point where this line goes through the x-axis):

0 = -3x + 3 and

-3 = -3x so

x = 1

The coordinate on the x-axis such that AC = BC is (1, 0)

7 0
2 years ago
What is the percent increase of 24 to 32?
goblinko [34]

Answer:

8%???????????????????????

6 0
2 years ago
Read 2 more answers
I NEED UR HELP CAUSE I DON'T KNOW WHAT I'M DOING PLS
rodikova [14]

Answer:

D) x > -4

Step-by-step explanation:

6x - 5 > -29

6x > -29 + 5

6x > -24

x > -4

7 0
2 years ago
What is an equation of the line that passes through the points :<br><br> (−6,−5) and (−6,−2)?
Leno4ka [110]

Answer:  x= -6

Step-by-step explanation:

It will be a vertical line parallel to the y-axis at -6 on the x-axis. It passes through every y-value, including the given -5 and -2

5 0
3 years ago
Other questions:
  • Find the sum of the series 9+3+1+........+1/27​
    11·1 answer
  • Please please help me
    8·2 answers
  • The surface area of a swimming pool is 373 square feet. What is it’s surface area in square meters?
    5·1 answer
  • What is 3.1 divided by 25.42
    9·2 answers
  • Pick the geometric term that matches the real-world object: a deck of cards.
    12·2 answers
  • You are planning to take a group of friends to the movies for your birthday. The local movie theater charges $12.99 per person.
    12·2 answers
  • The radius of the circle above is 34 mm. What is the circumference of the circle? (Use 7 = 3.14.)
    7·1 answer
  • Q
    13·1 answer
  • Laura walked 6 1/2 laps of a circular path in 2 hours. At that rate, how many laps of the path did she walk in one hour
    14·2 answers
  • ( 4 , 1 2/3 ) ( 2 , − 2/3 ) find the slop
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!