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3 years ago

How to solve this

Mathematics

2 answers:

Ludmilka [50]3 years ago

6 0

Answer:

my brain said bye- :(

Step-by-step explanation:

Tamiku [17]3 years ago

3 0

Sorry I don’t really know the answer :(

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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

In 1990, it cost $800,000 for a 30-second commercial during the Super Bowl. In 2020, the cost for a 30-second commercial was $5,

lesya [120]

Answer:

690%

Step-by-step explanation:

To find the percent increase, take the new amount and subtract the original amount

5600000-80000=5520000

Divide it by the original amount

5520000/800000

6.9

Multiply this by 100% to change from decimal form to percent form

6.9*100%

690%

6 0

3 years ago

Read 2 more answers

A watch band is 8 in long. What is its diameter when you wrap it around your wrist? Round your answer to the nearest

Snezhnost [94]

Answer:

well, all you need to do is 8 x 3.14 so then you shall get your answer!

Step-by-step explanation:

6 0

3 years ago

{ − 2 x + y = 0 5 x + 3 y = − 11

sineoko [7]

The answer is correct because—and I oop reeeee blah blah reee

6 0

4 years ago

A=1/2h(x+y) solve for h

Sloan [31]

Umm it think it would 1/2hx and 1/2hy
idk if im right tho

7 0

3 years ago