The discriminant of a quadratic equation is the value b2 – 4ac. what is the value of the discriminant of 0 = –2x2 + 6x + 13?

140

Step-by-step explanation:

Given

- 2x² + 6x + 13 = 0 ← in standard form

with a = - 2, b = 6 and c = 13, then

b² - 4ac

= 6² - (4 × - 2 × 13 )

= 36 - (- 104)

= 36 + 104

= 140

140

Step-by-step explanation:

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it