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Otrada [13]
3 years ago
11

A store purchased a digital camera and marked it up 100% from the original cost of $863.57. A week later, the store placed the d

igital camera on sale for 40% off. What was the discount price?
Mathematics
2 answers:
WINSTONCH [101]3 years ago
7 0

Answer:

1,036.28

Step-by-step explanation:

IXL

uysha [10]3 years ago
6 0

Step-by-step explanation:

863.57 ×40/100 = 345.428

................................................

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Rudik [331]
I assume there's a plus sign missing above...

Convert to polar coordinates, using

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Then the Jacobian is

\dfrac{\partial(x,y)}{\partial(r,\theta)}=\begin{vmatrix}x_r&y_r\\x_\theta&y_\theta\end{vmatrix}=\begin{vmatrix}\cos\theta&\sin\theta\\r\sin\theta&-r\cos\theta\end{vmatrix}=-r

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