What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x? discriminant = b2 – 4ac –8 4 8 16

16

Step-by-step explanation:

–3 = –x^2 + 2x

Lets rewrite the equation in the form  ax^2 +bx +c =0

Add 3 to each side

–3+3 = –x^2 + 2x+3

0 = -x^2+2x+3

a = -1  b=2   c=3

Using the discriminant

b^2 - 4ac

2^2 - 4(-1) (3)

4 +12

16

ANSWER

Discriminant=16

EXPLANATION

The given quadratic equation is

This is not in the general quadratic form.

We rewrite in the general quadratic form to obtain,

Comparing to

we have a=1, b=-2 and c=-3.

Substitute these values into the formula for the discriminant:

D=b²-4ac

The discriminant is 16.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

is means division by fractions

step-by-step explanation: