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Nina [5.8K]
3 years ago
11

5x+15+4x = 6x -3 (x+9)

Mathematics
1 answer:
OLga [1]3 years ago
8 0

Answer:

x= -7

Brainliest pls

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There are 50 apple trees in an orchard. Each tree produces 800 apples. For each additional tree planted in the orchard, the outp
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Answer:

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The given function is,

P=40000+300x-10x^2

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P = the total production of apples,

x = the number of trees added.

As the quadratic function has a negative leading coefficient, so it will open downward and at the vertex the value of function is maximum.

The vertex will be at \left(-\dfrac{b}{2a},-f\left(\dfrac{b}{2a}\right )\right)

The value of the function will be maximum at,

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Putting the values,

x=-\dfrac{300}{2\times (-10)}=\dfrac{300}{2\times 10}=\dfrac{300}{20}=15

So at x=15 or for 15 number of trees the production will be ,maximum.

Putting x=15 in f(x) will yield the maximum production of apples.

P=40000+300(15)-10(15)^2=42,250

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How much will Bob need to save each month if he wants to buy a $30,000 car with cash in 5 years? He can earn a nominal interest
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B

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C is too little and D is too much

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