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3 years ago

A. There are 34 musicians included in the data.

Mathematics

1 answer:

patriot [66]3 years ago

7 0

Answer:

Most of the musicians started to play at age 9 or older

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11Alexandr11 [23.1K]

Answer:

15 ways

Step-by-step explanation:

$\frac{6!}{4!(6-4)!}=\frac{6!}{4!2!}=15$

7 0

3 years ago

Find gradient xe^y + 4 ln y = x² at (1, 1)

cricket20 [7]

$xe^y+4\ln y=x^2$

Differentiate both sides with respect to x, assuming y = y(x).

$\dfrac{\mathrm d(xe^y+4\ln y)}{\mathrm dx}=\dfrac{\mathrm d(x^2)}{\mathrm dx}$

$\dfrac{\mathrm d(xe^y)}{\mathrm dx}+\dfrac{\mathrm d(4\ln y)}{\mathrm dx}=2x$

$\dfrac{\mathrm d(x)}{\mathrm dx}e^y+x\dfrac{\mathrm d(e^y)}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

$e^y+xe^y\dfrac{\mathrm dy}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

Solve for dy/dx :

$e^y+\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x$

$\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x-e^y$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x-e^y}{xe^y+\frac4y}$

If y ≠ 0, we can write

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}$

At the point (1, 1), the derivative is

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}$

4 0

3 years ago

A book had a lenght of 5 inches and a width of 10 inches. What is the area of the book

babunello [35]

Answer:

Step-by-step explanation:

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4 years ago

Sovle each system of equations by graphing

Artist 52 [7]

Answer:

this is for the first one

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3 years ago

How do I fine the sun and difference of number 16?

UkoKoshka [18]

To find the sum, add. To find the difference, subtract. It's simple terminology in mathematics. Hope I helped!

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3 years ago