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Degger [83]
3 years ago
13

What are the values of a, b, and c in the quadratic equation –2x2 + 4x – 3 = 0?

Mathematics
2 answers:
IgorC [24]3 years ago
4 0

Answer:

The value of a, b and c are -2, 4 and -3 respectively.

Step-by-step explanation:

The given quadratic equation is

-2x^2+4x-3=0                 .... (1)

The general form of a quadratic equation is

ax^2+bx+c=0                 .... (2)

On comparing (1) and (2), we get

a=-2,b=4,c=-3

Therefore the value of a, b and c are -2, 4 and -3 respectively.

Leya [2.2K]3 years ago
3 0
<span>the quadratic equation is ax^2 +bx+c=0
So a will be -2, b = 4, c =-3</span>
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Write the equation in function form<br> 6y - 4x = 24
k0ka [10]

Answer:

f(x) = (2/3)x + 4

Step-by-step explanation:

An equation in function is found by isolating y, and changing "y" to "f(x)".

Isolate y by moving everything else to the other side

What is done to one side must be done to the other

6y - 4x = 24

6y - 4x + 4x = 24 + 4x          (add 4x to both sides. -4x +4x cancels out)

6y = 24 + 4x

6y/6 = 24/6 + 4x/6             (divide both sides by 6)

y = 4 + (2/3)x          (simplify)

y = (2/3)x + 4        (rearrange to a familiar format "y=mx+b")  

f(x) = (2/3)x + 4        (replace y with f(x))

6 0
2 years ago
Expand or factor each of the following expressions to determine which expressions are equivalent.
IceJOKER [234]

Answer:

1. 9x^2-24xy16y^2

2.

3.9y^2-246y+1681

4. 18x^2+54x-44

Step-by-step explanation:

1. (3x)^2-2*3x*4y+(4y)^2

9x^2-2*3x4y+(4y)^2

9x^2-24xy+(4y)^2

9x^2-24xy+16y^2

Ans: 9x^2-24xy+16y^2   the (*) are times

2. 912+31-20=923

ANS: 13*71

3. 1681-246y+9y^2

9y^2-246y+1681

ANS : 9y^2-246y+1681

4. 3x*(9*2+6x+4)-2(9*2+6x+4)

54x+18^2+12x-2(9*2+6x+4)

54x+18x^2+12x-36-12x-8

54x+18^2+12x-36-12x-8

54x+18x^2-36-8

18x^2+54x-36-8

18x^2+54x-44

Ans: 18x^2+54x-44

5. 3x*3x-3x*4+5*3x-5*4

9x^2-3x*4+5*3x-5*4

9x^2-12x+5*3x-5*4

9x^2-12x+15x-5*4

9x^2-12x+15x-20

ANS: 9x^2+3x-20

6. (31+2)(912-61+4)=28215

ANS : 3^3*5*11*19

7. 9.12-2414+1672

912/100-2414+1672

2^4*3*19/2^2*5^2 -2414+1672

2^4-2*3*19/5^2 -2414+1672

2^2*3*19/5^2 -742

(2^2*3*19)-5^2)742/5^2

(4*3*19)-25*742/5^2

228-18550/5^2

18322/5^2

8. 2713-8

2705

ANS: 5*541

5 0
3 years ago
The mean age and median age of 6 people in a room is 40 years. a person whose age is 60 years leaves the room. question 1. if po
FromTheMoon [43]
Mean = (total of contributors) / (number of contributors)

For the 6 people in the room, you have
   40 = (total of contributors) / 6
   (total of contributors) = 6*40 = 240

A 60-year-old left the room, decreasing the total of contributors by 60.
   (new total of contributors) = (total of contributors) - 60
   (new total of contributors) = 240 - 60 = 180

Then the new mean is
   (new mean) = (new total of contributors) / (new number of contributors)
   (new mean) = 180 / 6 = 36

The mean age of the remaining 5 people is 36.
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3 years ago
REUPLOAD PLS HELP AND SUPER FAST !! YES BRAINLEST :))
eimsori [14]
30/150 = 80/x

Reduce the fraction:
1/5 = 80/x

Cross multiply:
x = 5 x 80

x= 400

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3 years ago
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0.006
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