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3 years ago

1. If a piece has changed from F major to a C major, its ___ has changed

Advanced Placement (AP)

2 answers:

kondor19780726 [428]3 years ago

5 0

Answer: 4 is d

Explanation:

nirvana33 [79]3 years ago

4 0

I.b 2c4d4c idk why if it correct

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Producers would mostly likely not provide _____, because everyone can use them, even those who do not pay. So governments provid

lidiya [134]

a. public goods

too easy XD

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3 years ago

Write a program that takes three numbers and prints their sum. Every

saveliy_v [14]

Answer:

This solution is implemented in python

num1 = float(input("Number 1: "))

num2 = float(input("Number 2: "))

num3 = float(input("Number 2: "))

print("Sum: "+str(num1+num2+num3))

Explanation:

This line prompts the user for the first number

num1 = float(input("Number 1: "))

This line prompts the user for the second number

num2 = float(input("Number 2: "))

This line prompts the user for the third number

num3 = float(input("Number 2: "))

This calculates and prints the sum

print("Sum: "+str(num1+num2+num3))

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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.

3xy

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.

4x

This is a normal power rule derivative.

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

y²

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

If y = 3x3 – 2x and dx/dt=3, find dy/dt when x = –2. Give only the numerical answer. For example, if dy/dt = 4, type only 4.

ludmilkaskok [199]

-6 dy\dx multiplied by dx\dt will give you dy\dt and dy\dx=-2 and dx\dt=3

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4 years ago

Does anyone have any good resources for practice exams related to AP World History (not the final exam) dealing with c. 1750 to

kenny6666 [7]

The practice books I use to study for AP exams are 5 Steps to a 5, Barron's, the Princeton Review, and VarsityTutors (app). These are some great resources to study a particular topic or the whole course in general.

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3 years ago