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yan [13]
3 years ago
9

demand for a brand of clock radio is given by p+3q=390 , and the supply for these radios is given by p=7q=90 , where is the pric

e and is the quantity demanded at price . Solve the system containing these two equations to find the price at which the quantity demanded equals the quantity supplied and the equilibrium quantity.

Mathematics
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

p=$300 and q=30 clock radio

Step-by-step explanation:

we have

p ----> is the price

q ----> is the quantity

p+3q=390 ----> equation A

p-7q=90 ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The intersection point is (300,30)

see the attached figure  

therefore

The solution is

p=$300

q=30 clock radio

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Cosx+1/sin^3x=cscx/1-cosx
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<span> I am assuming you want to prove:
csc(x)/[1 - cos(x)] = [1 + cos(x)]/sin^3(x).

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LHS = csc(x)/[1 - cos(x)]
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