2 years ago

If y=3x^3-2x and (dx)/(dy) = 3, find (dy)/(dt) when x=-2

Mathematics

1 answer:

lesya692 [45]2 years ago

4 0

Answer:

dy/dx = 9x²+2

dy = (9x²+2) dx

dy/dt = (9x²+2) dx/dt

if x = 2 and dx/dt=5 then

dy/dt = (9*2²+2)*5 = 38*5 = 190

You might be interested in

Graph x^3 - 3x^2 + 2 = 0.1 - x What are the solutions of the equation?

liq [111]

Answer:

$x=-0.6,x=1.52,x=2.08$

Step-by-step explanation:

Let $f(x)=x^3-3x^2+2$ .

and

$g(x)=0.1-x$

The graph of the two equations are shown in the attachment.

The points where the two graphs intersected are: $(-0.6,0.7),(1.52,-1.42),(2.08,-1.98)$

The x-coordinates of the intersection points are the solutions to $x^3-3x^2+2=0.1-x$ .

Therefore the solutions are: $x=-0.6,x=1.52,x=2.08$

6 0

2 years ago

2, -4, 8, -16, . . . find the next two numbers in the pattern and describe the pattern.

il63 [147K]

The next numbers are 32 and -64 the pattern multiplies by -2

6 0

2 years ago

Please help me with this (5th grade math)

Tanya [424]

Answer:

kenis

Step-by-step explanation:

3 0

3 years ago

Hardy was given the scale drawing of the enlargement to Analyze Hardy's work to determine if he is correct. If he

irakobra [83]

Answer:

the correct answer is NO. hardy should have multiplied by the scale factor to find the missing length.

Step-by-step explanation:

dont got one hehehe

8 0

3 years ago

Read 2 more answers

About how much medicine is in a medicine bottle

Paraphin [41]

Answer:

For measuring such small amounts of medicine, your doctor may give you a 1 cc syringe (there is that cubic centimeter thing again - remember, it is the same as a milliliter - ml).

...

measurement of medicines.

1/4 teaspoon 1.25 ml

1 teaspoon 5 ml

1-1/2 teaspoon 7.5 ml

1 tablespoon 15 ml

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

If y=3x^3-2x and (dx)/(dy) = 3, find (dy)/(dt) when x=-2​

If y=3x^3-2x and (dx)/(dy) = 3, find (dy)/(dt) when x=-2