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
labwork [276]
3 years ago
8

How to find the discriminant of

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0

the discriminant   b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0

13x^2-16x = x^2 -x

we need to get in it the standard form

subtract x^2 from each side

12x^2 -16x = -x

add x to each side

12x^2 -15x = 0

12x^2 -15x -0 =0

a=12 b=-15 c=0

b^2 -4ac

the discriminant = b^2

b^2 = (-15)2 = 225


You might be interested in
What is the proportionality of 4 and 1.50?
Llana [10]

Answer:

y = 0.375x

Step-by-step explanation:

Let there are two variables, one independent variable x and another dependent variable y which are in proportionality relation.

So, y ∝ x

⇒ y = kx  ........... (1) {Where k is the proportionality constant}

Let us assume that the given values of 4 and 1.50 are values of x and y respectively.

Hence, from equation (1) we get, 1.5 = 4k

⇒ k = 0.375

So, the proportionality equation is y = 0.375x (Answer)

5 0
3 years ago
Help what is the value of X
EastWind [94]
I hope this helps. Since there are verticale angles that’s why I added another x.

5 0
3 years ago
What is the additive inverse of 18xy?
Cloud [144]
An additive inverse is the value you can add to a given value such that the sum is "0".. 

Your answer is choice A
18xy + (-18xy) = 0   Since these are like terms.. the key here is understanding that like terms must have the same exact variables raised to the exact same powers.  We can add like terms.  We cannot add unlike terms.
6 0
3 years ago
Read 2 more answers
What is 363 rounded to the nearest ten and hundred
anyanavicka [17]
3 is less than 5, so rounded to the nearest ten is 360.

6 is greater than 5, so rounded to the nearest hundred, our answer is 400.
4 0
3 years ago
Read 2 more answers
What is the radius of a circle in it in if the area is 36m²?
allsm [11]

Answer:

B. 3.39 m

Step-by-step explanation:

r² = A/π

= 36/3.14

= 11.465

r = √11.465 = 3.39

4 0
2 years ago
Other questions:
  • 49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively
    11·1 answer
  • What is 6 times less 420
    5·1 answer
  • Rename 120,000 ten thousand
    13·1 answer
  • Find the measure of ∠C if ∠A = 3 2 x + 20 ∠B = 7 2 x + 20 ∠C = 5 2 x + 40 ∠D = 3 2 x + 10 A) 65° B) 76° C) 95° D) 115°
    7·2 answers
  • If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (9 - 1)(3)?
    12·2 answers
  • The geometric sequence bn is defined below. Find b3.<br> B1 = 54<br> R= -1/3
    13·1 answer
  • Please Help!! I will give Brianliest to the correct answer!!!!
    10·1 answer
  • What is the volume of the prism?<br> 2 cm<br> 3cm<br> 11 cm PLS HURRY
    11·1 answer
  • 8,626 round to the nearest thousand?
    9·1 answer
  • Mike is a veterinarian. He is placing a nine-line job ad for an assistant.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!