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
Gemiola [76]
2 years ago
9

(PLEASE HELP )Use the discriminant to find the number of real solutions of the equation 3x^2-5x+4=0. show your work.

Mathematics
2 answers:
Softa [21]2 years ago
5 0

Answer:

0 real solutions

Step-by-step explanation:

The discriminant (D) is given by the formula:

D=b^2-4ac

Where a,b, and c are gotten from the standard form of a quadratic equation, which is  ax^2+bx+c=0

The equation given is  3x^2-5x+4=0

<em>From this we can say that a = 3, b = -5, & c = 4. Plugging these into the discriminant formula we get:</em>

D=b^2-4ac\\D=(-5)^2-4(3)(4)\\D=-23

<u>There are 3 things that we can find from the value of discriminant:</u>

1. If D=0, there are 2 equal, real roots

2. if D>0, there are 2 distinct real roots

3. if D<0, there are no real roots, rather 2 imaginary roots

Since the value of the discriminant is negative (D<0), we can say that there are no real solutions for the equation given.

OleMash [197]2 years ago
3 0

Answer:

<h2>0</h2>

Step-by-step explanation:

\text{Use the discriminant:}\\\\ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{If}\ \Delta>0\ \text{then the equation has two real solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\text{If}\ \Delta=0\ \text{then the equation has one real solution:}\ x=\dfrac{-b}{2a}\\\text{If}\ \Delta

\text{We have the equation:}\\\\3x^2-5x+4=0\\\\a=3,\ b=-5,\ c=4\\\\\Delta=(-5)^2-4(3)(4)=25-48=-23

You might be interested in
Find the slope of the line y =-4/3x –2/3 .
White raven [17]
The slope is -4/3 because it's the coefficient of x
7 0
2 years ago
Read 2 more answers
If five times a number plus two is 17, what is the number? <br> A. 7<br> B. 5<br> C. 3<br> D. 2
Artemon [7]
C=3
because 5 times 3 + 2+17
5 0
3 years ago
Read 2 more answers
What is the measure of QTR? <br><br> What is the measure of PTR?
soldi70 [24.7K]

Answer:

QTR is 36

PTR is 62

Step-by-step explanation:

P+R+T=180

8 0
2 years ago
Aeo
Nadya [2.5K]

Answer:

339.290

Step-by-step explanation:

by using the formula for surface area of cylinder that is 2πrh+2πr^2

6 0
3 years ago
3 lines are shown. One line has points B, A, and E. Another line with points C, A, F intersects that line at point A. Another li
AleksAgata [21]

Answer:

option C just toke the unit test :)

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Samantha loves to download new music. She originally had 52 songs but plans to purchase 2 new songs each week. She wants to know
    7·2 answers
  • What are whole numbers​
    7·2 answers
  • Can someone please help ! thank you !
    11·1 answer
  • each day last week, Ms. wilson walked3/4 mile. what is the total distance, in miles, that Ms. Wilson walked in 4 days?
    15·2 answers
  • Circle D is shown with the measure of the minor arcs which segment are congruent
    6·1 answer
  • A circular racetrack has a diameter of 1/2 mile. How far does a car travel in one lap around the track? Round to the nearest ten
    6·1 answer
  • Radius of a circle is 6.35m. What is the area
    10·1 answer
  • What are two linear expressions with a sum of -5x+4
    11·1 answer
  • Question 4 please provide explanation for question
    14·1 answer
  • HELP ASAP Will give brainliest!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!