Ask question

Ask question

All categories

AleksAgata [21]

3 years ago

6

Income alone does not give the full picture of standard of living. Why not?

Advanced Placement (AP)

1 answer:

OverLord2011 [107]3 years ago

7 0

Answer:

the long term, the U.S. standard of living has improved. Still, there are some vital numbers to watch. After five years of the poverty rate going down in the U.S., it rose in 2020. The official U.S. poverty rate was 10.5% in 2019, but in 2020 it was up to 11.4%.

You might be interested in

Joey earns $4.80 per hour regular pay. He also earns time and a half overtime pay. Last week, he worked 44 hours. What was his t

Tcecarenko [31]

Answer:

$163.20

Explanation:

8 0

3 years ago

What kind of website allows people to see the correct answer on screen?

jeka94

Answer:

Bing, then Google and IMDb

4 0

3 years ago

It is recommed that a letter of recommendations for colege admission come from

jenyasd209 [6]

Teachers, counselors, and mentors who know you and your strengths well

8 0

3 years ago

The term “knots" is used to describe what aspect of a ship?

Anna007 [38]

Answer:

speed

Explanation:

4 0

3 years ago

Find dy/dx if 3xy=4x+y^2

ElenaW [278]

Hi there!

We can use implicit differentiation with respect to x:

$3xy = 4x + y^2$

If a term with 'y' is differentiated, a 'dy/dx' must be included.

We can differentiate each term separately for the explanation.

<u>3xy</u>

We must use the power rule since 'x' and 'y' are both in this term.

Power rule:

$f(x) * g(x) = f'(x)g(x) + g'(x)f(x)$

$3xy \\\\f(x) = 3x\\g(x) = y \\\\f'(x)g(x) + g'(x)f(x) = 3y + 3x\frac{dy}{dx}$

Now, we can do the others.

<u>4x</u>

This is a normal power rule derivative.

$f(x) = 4x\\f'(x) = 4$

<u>y²</u>

Since we are not differentiating with respect to y, we must include 'dy/dx'.

$f(x) = y^2\\f'(x) = 2y\frac{dy}{dx}$

Combine the above:

$3y + 3x\frac{dy}{dx} = 4 + 2y\frac{dy}{dx}$

Rearrange to solve for dy/dx.

Move dy/dx to one side:

$3x\frac{dy}{dx} - 2y\frac{dy}{dx} = 4 + 3y \\\\$

Factor out dy/dx and divide:

$\frac{dy}{dx}(3x- 2y) = 4 + 3y \\\\\boxed{\frac{dy}{dx} = \frac{4+3y}{3x-2y}}$

3 0

2 years ago