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2 years ago

The are of square frame is 55 square inches. find length of one side frame explain

Mathematics

1 answer:

dangina [55]2 years ago

6 0

Answer:

$\sqrt {55}$ inches

Step-by-step explanation:

Let x inches be the length of one side of the frame. The frame is the square, so all sides have the same lengths.

Use formula $A=x^2\ in^2$ connecting the area of the square and the side length of the square.

Since the area ofthe square is 55 square inches, we have

$x^2 =55\\ \\x=\sqrt {55}\ in$

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2 years ago

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2 years ago

The mass of a colony of bacteria, in grams, is modeled by the function P given by P(t)=2+5tan^−1.(t/2), where t is measured in d

ira [324]

Answer:

1.21 g/day

Step-by-step explanation:

We are given that

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Substitute the value

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Substitute the value of t

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$P'(2tan\frac{4}{5})=\frac{10}{4}\times \frac{1}{1+tan^2(\frac{4}{5})}$

We know that $1+tan^2\theta=sec^2\theta$

Using the formula

$P'(2tan(\frac{4}{5})=\frac{5}{2}\times \frac{1}{sec^2(\frac{4}{5})}$

$P'(2tan\frac{4}{5})=\frac{5}{2}\times cos^2(\frac{4}{5})$

By using $cos^2x=\frac{1}{sec^2x}$

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2 years ago

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Answer:

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2 years ago

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The are of square frame is 55 square inches. find length of one side frame explain​

The are of square frame is 55 square inches. find length of one side frame explain