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3 years ago

11

Each day at school, Kai records his homework assignments in a small notebook. Each page of the notebook measures 2 1/4 inches by

3 1/2 inches. Find the area of one page.

2 answers:

joja [24]3 years ago

4 0

The correct answer is 7/78

Katarina [22]3 years ago

3 0

Area,for rectangles is length x width so 2 1/4 inches x 3 1/2 inches is 7 7/8

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sergeinik [125]

Answer:

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Step-by-step explanation:

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How did you identify the line of sight, angle of elevation and angle of depression?

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2 years ago

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3 years ago

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Ghella [55]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Find all solutions of the equation sin^2 x=2sinx+3

Mashutka [201]

$\sin^2x=2\sin x+3$
$\sin^2x-2\sin x-3=0$
$(\sin x-3)(\sin x+1)=0$

which means either $\sin x=3$ or $\sin x=-1$ . The equation has no solution, since $\sin x$ is always bounded between -1 and 1. The second has one solution at $x=-\dfrac\pi2$ , and any number of complete revolutions will also satisfy this equation, so in general the solution would be $-\dfrac\pi2+2k\pi$ where $k$ is any integer.

So you could choose $A=-\dfrac\pi2$ and $B=2$ .

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3 years ago