All categories

3 years ago

Find the discriminant for the following equation 3x^2+4x=2

Mathematics

2 answers:

hichkok12 [17]3 years ago

6 0

Answer:

The discriminant is 40

Step-by-step explanation:

First, rewrite the equation as $3x^2+4x-2=0$ so that the equation is in the form of $ax^2+bx+c=0$ . Thus, the discriminant is $b^2-4ac=(4)^2-4(3)(-2)=16+24=40$ . This tells us that since the discriminant is greater than 0, then there are 2 real solutions.

loris [4]3 years ago

6 0

ANSWER: 40
Hope it helps you

You might be interested in

Explain why an equation is extraneous. Explain why an equation is non extraneous.

TEA [102]

Answer:

I hope it's helpful.

Step-by-step explanation:

In mathematics, an extraneous solution (or spurious solution) is a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the problem.

5 0

3 years ago

PLZ ASAP, I NEED HELP ASAP

loris [4]

I won't give you the answer because I am sure you are capable of finding it yourself once given a push, but what I would do is simplify all of the numbers into a mixed fraction (a b/c) and then go from there. Don't subtract the two numbers with the denominator of 25 first because they goes against PEMDAS. Change all of the fractions so they have like denominators, and once you solve it, just write the fraction part of the answer (b/c). If you have any other questions, just ask.

8 0

3 years ago

Plzzzz answer fast..

V125BC [204]

Answer:

D) LM=12; QP=8

Step-by-step explanation:

12/18=(x-1)/(x+3)

cross multiply

12x+36=18x-18

36+18=18x-12x

54=6x

9=x

LM = x+3 = 9+3 = 12

QP = x-1 = 9-1 = 8

4 0

3 years ago

PLEASE HELP!!!!

Semmy [17]

You should put 4 as x, -3 as y and a as slope to make an equation :
$- 3 = a \times 4$
then you can find the slope and the correct equation of the line :

the slope is :
$- 3 = 4a \\ a = \frac{ - 3}{4}$
so the equation of the line will be
$y = \frac{ - 3}{4} x$
D is true
hope this helps

5 0

3 years ago

Drag each tile to the correct box.

rodikova [14]

Answer: C < B < A

<u>Step-by-step explanation:</u>

First, let's evaluate the growth rate of A from [1, 3]

$f(x) = 200\bigg(\dfrac{3}{2}\bigg)^1$

= 300

coordinate is (1, 300)

$f(x) = 200\bigg(\dfrac{3}{2}\bigg)^3$

= 675

coordinate is (3, 675)

Average growth rate (AGR) is: $\dfrac{675-300}{3-1} = \dfrac{375}{2} = 187.5$

AGR (A) = 187.5

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

Next, let's evaluate the growth rate of B from [1, 3]

The coordinates are already provided as (1, 120) and (3, 480)

Average growth rate (AGR) is: $\dfrac{480-120}{3-1} = \dfrac{360}{2} = 180$

AGR (B) = 180

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

Lastly, let's evaluate the growth rate of C from [1, 3]

f(x) = 600(1.2)ˣ

f(x) = 600(1.2)¹

= 720

coordinate is (1, 720)

f(x) = 600(1.2)³

= 1036.8

coordinate is (3, 1036.8)

Average growth rate (AGR) is: $\dfrac{1036.8-720}{3-1} = \dfrac{316.8}{2} = 158.4$

AGR (C) = 158.4

8 0

3 years ago