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3 years ago

Help please and explain

Mathematics

1 answer:

Verizon [17]3 years ago

7 0

Answer:

e x = 14

Step-by-step explanation:

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Please help me with this. I'm stuck

Anon25 [30]

Answer:

Step-by-step explanation:

7 choose 2 or

=7! / (7-2)!

=7*6*5*4*3*2*1 / 5*4*3*2*1

=7*6

=42

8 0

3 years ago

Read 2 more answers

Write an equation for a b c d and e

sweet [91]

Step-by-step explanation:

I really don't know how to do this but just try your best because I get stuck on this one too

7 0

3 years ago

Find the first partial derivatives of the function f(x,y,z)=4xsin(y−z)

Amanda [17]

Answer:

$f_x(x,y,z)=4\sin (y-z)$

$f_x(x,y,z)=4x\cos (y-z)$

$f_z(x,y,z)=-4x\cos (y-z)$

Step-by-step explanation:

The given function is

$f(x,y,z)=4x\sin (y-z)$

We need to find first partial derivatives of the function.

Differentiate partially w.r.t. x and y, z are constants.

$f_x(x,y,z)=4(1)\sin (y-z)$

$f_x(x,y,z)=4\sin (y-z)$

Differentiate partially w.r.t. y and x, z are constants.

$f_y(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial y}(y-z)$

$f_y(x,y,z)=4x\cos (y-z)$

Differentiate partially w.r.t. z and x, y are constants.

$f_z(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial z}(y-z)$

$f_z(x,y,z)=4x\cos (y-z)(-1)$

$f_z(x,y,z)=-4x\cos (y-z)$

Therefore, the first partial derivatives of the function are $f_x(x,y,z)=4\sin (y-z), f_x(x,y,z)=4x\cos (y-z)\text{ and }f_z(x,y,z)=-4x\cos (y-z)$ .

4 0

4 years ago

Leeann works 20 hours per week and makes $15 per hour. What is her yearly pay?

Alisiya [41]

Answer:

C - $15,600

Step-by-step explanation:

1. Multiply # of hours (20) times rate of pay (15)

20* 15 = 300 Per week

2. multiply weekly salary timex 52 weeks in one year.

300 * 52 = 15,600

8 0

4 years ago

Read 2 more answers

If 8x -2=-9+7x,what is the value of 4x-4?

Dimas [21]

Well if my math is correct, x= -7, meaning 4x-4= (4*-7)-4. That equals -32.

Hope this helps.

7 0

3 years ago