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3 years ago

An equation can be used to find the total cost of buying square-foot floor 5 points

Mathematics

1 answer:

navik [9.2K]3 years ago

8 0

Answer:

it could be 720

Step-by-step explanation:

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Being fun again who whants points here is a question you'll get 50 points

stich3 [128]

Answer:

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Step-by-step explanation:bark brainliest plz

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3 years ago

Read 2 more answers

Find the y and x intercept 6x-8y=48

Crank

6x-8y=48

to find the x intercept set y=0

6x - 8*0 = 48

6x = 48

divide by 6 on each side

x =48/6

x=8

(8,0)

to find the y intercept set x=0

6(0) - 8y = 48

0 - 8y = 48

-8y = 48

divide by -8 on each side

y = -6

(0,-8)

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3 years ago

The first problem. Divide

4vir4ik [10]

Th answer is x-2.hope this helps

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3 years ago

Rays Gym Charges an initial sign up fee of $25.00 and a monthly Fee of $15.00 how do i put this in a function for X months

Hunter-Best [27]

25.00+15.00x
this is your answer yes i know it is beautiful and amazing but hold the applause please

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3 years ago

In Exercises 3–10, use the Chain Rule to calculate the partial derivatives. Express the answer in terms of the independent varia

sashaice [31]

I'll use subscript notation for brevity, i.e.

$\dfrac{\partial f}{\partial x}=f_x$

$f(x,y,z)=xy+z^2\implies\begin{cases}f_x=y\\f_y=x\\f_z=2z\end{cases}$

$x(r,s)=s^2\implies\begin{cases}x_r=0\\x_s=2s\end{cases}$

$y(r,s)=2rs\implies\begin{cases}y_r=2s\\y_s=2r\end{cases}$

$z(r,s)=r^2\implies\begin{cases}z_r=2r\\z_s=0\end{cases}$

By the chain rule,

$f_r=f_xx_r+f_yy_r+f_zz_r=2xs+4zr=2s^3+4r^3$

$f_s=f_xx_s+f_yy_s+f_zz_s=2ys+2xr=6rs^2$

$x(r,s,t)=r+s-2t\implies\begin{cases}x_r=1\\x_s=1\\x_t=-2\end{cases}$

$y(r,s,t)=3rt\implies\begin{cases}y_r=3t\\y_s=0\\y_t=3r\end{cases}$

$z(r,s,t)=s^2\implies\begin{cases}z_r=0\\z_s=2s\\z_t=0\end{cases}$

By the chain rule,

$f_r=f_xx_r+f_yy_r+f_zz_r=y+3xt=3rt+3r+3s-6t^2$

$f_s=f_xx_s+f_yy_s+f_zz_s=y+4zs=3rt+4s^3$

$f_t=f_xx_t+f_yy_t+f_zz_t=-2y+3xr=3r+3s-12rt$

8 0

2 years ago