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Alex Ar [27]
2 years ago
14

Help please????????????????

Mathematics
2 answers:
navik [9.2K]2 years ago
6 0

Answer:

the answer is 289.38

Step-by-step explanation:

the equation for area of circle is pi r ^2

so plug them in 3.14(9.6^2)=

3.14*92.16= approx 289.38


raketka [301]2 years ago
4 0

Answer: 289.38


Step-by-step explanation: the formula of finding the area of a circle is pi times radius squared. The cheesy joke to help you remember that is, pi r2 (pie are squared) , no pie are round.


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Answer:

dA/dt = k1(M-A) - k2(A)

Step-by-step explanation:

If M denote the total amount of the subject and A is the amount memorized, the amount that is left to be memorized is (M-A)

Then, we can write the sentence "the rate at which a subject is memorized is assumed to be proportional to the amount that is left to be memorized" as:

Rate Memorized = k1(M-A)

Where k1 is the constant of proportionality for the rate at which material is memorized.

At the same way, we can write the sentence: "the rate at which material is forgotten is proportional to the amount memorized" as:

Rate forgotten = k2(A)

Where k2 is the constant of proportionality for the rate at which material is forgotten.

Finally, the differential equation for the amount A(t) is equal to:

dA/dt = Rate Memorized - Rate Forgotten

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3 years ago
At barlow school 4/9 of the 873 students are boys at willow school 2/3 of the 630 students are girls which school has the greate
marishachu [46]

Answer:

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Step-by-step explanation:

We are given the following in the question:

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Willow school:

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Number of girls =

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Number of boys =

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Thus, Barlow school has greater number of boys than Willow school.

Difference between the number of boys =

=388-210\\=178

Thus, there are 178 more boys in Barlow school as compared to Willow school.

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1. discrete

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