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a_sh-v [17]
3 years ago
12

121.4 divided by 19 round to the nearest tenths​

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
4 0

Answer:

6.4

Step-by-step explanation:

121.4/19= 6.38947...

8 rounds 6.3 up to 6.4

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Answer:

Step-by-step explanation:

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A board game that normally costs $30 is on sale for 25 percent off. What is the sale price for the game?
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3 years ago
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.

We need to find the rainfall that produces the maximum number of mosquitoes.

Differential the above function with respect to x.

M'(x)=13-2x               .... (2)

Equate first derivative equal to 0.

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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.

4 0
3 years ago
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