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3 years ago

The discriminant of the function is

1 answer:

6 0

Discriminant of a Quadratic

The number D = b2 – 4ac determined from the coefficients of the equation ax2 + bx + c = 0. The discriminant reveals what type of roots the equation has.

Note: b2 – 4ac comes from the quadratic formula.

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A point P(x,y) moves along the graph of the equation y = x3 + x2 + 2. The x-values are changing at the rate of 2 units per secon

CaHeK987 [17]

Using implicit differentiation, it is found that y is changing at a rate of 10 units per second.

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The equation is:

$y = x^3 + x^2 + 2$

Applying implicit differentiation in function of t, we have that:

$\frac{dy}{dt} = 3x^2\frac{dx}{dt} + 2x\frac{dx}{dt}$

x-values changing at a rate of 2 units per second means that $\frac{dx}{dt} = 2$
Point Q(1,4) means that $x = 1, y = 4$ .

We want to find $\frac{dy}{dt}$ , thus:

$\frac{dy}{dt} = 3x^2\frac{dx}{dt} + 2x\frac{dx}{dt}$

$\frac{dy}{dt} = 3(1)^2(2) + 2(1)(2) = 6 + 4 = 10$

y is changing at a rate of 10 units per second.

A similar problem is given at brainly.com/question/9543179

5 0

3 years ago

“ it will take 1 2/3 hours” what is the 2/3 in minutes ?

Fittoniya [83]

Answer:

40 minutes

Step-by-step explanation:

2/3 x 60 = 40

8 0

3 years ago

A 2 liter drink costs $0.15 per deciliter. How much will the drink cost?

miv72 [106K]

The drink costs $3.00

7 0

3 years ago

Read 2 more answers

PLEASEEEEE HELPPPPP<br><br><br> Quick 15 points

zheka24 [161]

Answer:

Neither

Step-by-step explanation:

Since we only know the measure of the angles, we can only say the triangles are similar, not congruent. We need at least one side measurement on each triangle to determine if the triangles are congruent. And it would have to be the same side measurement. Then we could use ASA (Angle side Angle) or AAS ( Angle Angle side) to determine congruence.

The triangles are similar

62+39 +79 = 180

The three angles are the same

<A = 62 = <X = 62

<B = 39 = <Y = 39

<C = 79 = <Z = 79

This is shown by AAA similarity

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3 years ago

Please help!!!!!I’ll mark you as brainliest!!!!!!

Sav [38]

Answer:

Step-by-step explanation:

7 0

3 years ago