Calculate the discriminant of the quadratic equation. Please I really need your help

Mathematics

1 answer:

Marianna [84]3 years ago

3 0

Answer:

The discriminant of the quadratic equation is 0

Step-by-step explanation:

Here, we want to calculate the discriminant of the given quadratic equation

Mathematically, we have the discriminant calculated by the following formula;

D = b^2 - 4ac

where;

b represents the coefficient of x which is -2

a is the coefficient of x^2 which is 1/7

c is the last number which is 7

Substituting these values;

D = (-2)^2 -4(1/7)(7)

D = 4 - 4

D = 0

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Step-by-step explanation:

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Answer:

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5. Find the point P along the directed line segment from X(-3, 3) to Y(6,-3) that divides

ASHA 777 [7]

Consider point P(x,y) such that P, X and Y are collinear,

As vectors

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XP = OZ - OX
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Similarly,

PY = (6-x, -3-y)

But XP= 2^PY

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3 years ago

Half a pepperoni pizza plus three fourths of a ham and pineapple pizza contains 765 calories 1/4 of a pepperoni pizza plus a who

yulyashka [42]

Answer:

Correct choice is D (In a whole pepperoni pizza are 660 calories, in in a whole ham and pineapple pizza are 580 calories).

Step-by-step explanation:

Let x calories be the number of calories a whole pepperoni pizza contains and y calories be the number of calories a whole ham and pineapple pizza contains.

1. If half a pepperoni pizza plus three fourths of a ham and pineapple pizza contains 765 calories, then

$\dfrac{1}{2}x+\dfrac{3}{4}y=765.$