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3 years ago

PLEASE HELP ): 3

Mathematics

1 answer:

makkiz [27]3 years ago

8 0

ANSWER:

-34b-18 yes

34b-18 no

-18b+18 no

for detail solution see the picture.

hope it's helpful ❤❤❤

THANK YOU.

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y=-4x+b

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The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: M(x) = 13 x - x2. What

My name is Ann [436]

Answer:

The number of mosquitoes is maximum for 6.5 inches rainfall.

Step-by-step explanation:

The given function is

$M(x)=13x-x^2$ .... (1)

where, M(x) is number of mosquitoes in millions and x the June rainfall in inches.

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Equate first derivative equal to 0.

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$x=\frac{13}{2}=6.5$

Differential function (2) with respect to x.

$M''(x)=-2$

Double derivative is negative. So, the value of function is maximum at x=6.5.

Therefore, the number of mosquitoes is maximum for 6.5 inches rainfall.

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