3 years ago

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Mathematics

1 answer:

olga nikolaevna [1]3 years ago

5 0

B is the correct answer.

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18 decreased by 3 times d

babymother [125]

I’m unsure of what u r asking, I think 6 is ur answer

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4 years ago

A particle moves along the curve below. y = √ 8 + x 3 As it reaches the point ( 1 , 3 ) , the y -coordinate is increasing at a r

Dmitry [639]

Answer:

The x-coordinate is changing at 10 cm/s

Step-by-step explanation:

Rate of Change

Suppose two variables x and y are related by a given function y=f(x). If they both change with respect to a third variable (time, for instance), the rate of change of them is computed as the derivative using the chain rule:

$\displaystyle \frac{dy}{dt}=\frac{dy}{dx}\cdot \frac{dx}{dt}$

We have

$y=\sqrt{8+x^3}$

Or, equivalently

$y^2=8+x^3$

We need to know the rate of change of x respect to t. We'll use implicit differentiation:

$\displaystyle 2y\cdot \frac{dy}{dt}=3x^2\cdot \frac{dx}{dt}$

Solving for dx/dt

$\displaystyle \frac{dx}{dt}=\frac{2y\cdot \frac{dy}{dt}}{3x^2}$

Plugging in the values x=1, y=3, dy/dt=5

$\displaystyle \frac{dx}{dt}=\frac{2(3)\cdot 5}{3\cdot 1^2}=10$

The x-coordinate is changing at 10 cm/s

7 0

3 years ago

How many significant figures will there be in the answer to the following problem? 7500×45.0879

Alchen [17]

Two significant Figures I believe because you want to go with the least amount of sig figs that are already in your problem which would be 2 in 7500 because the zeros are not significant

8 0

3 years ago

mr. Chaplin measure distance rectangular bedroom for new carpeting who's bedrooms was the greatest area of Georgia's better and

Alina [70]

4.4 is the largest so Georgia's is better

6 0

3 years ago

The figure is made up of 2 hemispheres and a cylinder.

klemol [59]

The answer is C.396 Hope this helps. :) Just took the quiz.

8 0

3 years ago

Read 2 more answers