2 years ago

How do I solve this problem

Mathematics

1 answer:

Mila [183]2 years ago

6 0

Your answer is x=11/20

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Not sure, please help!

Blizzard [7]

Divide the number of actual pages by 2.

52/2 = 26

She will need 26 sheets of paper.

Hope this helps!

3 0

2 years ago

3. Find the Area of the circle:

gavmur [86]

The area of the circle is 28.26 sq in hope this helps

5 0

2 years ago

Use a half-angle identity to find the exact value of tan 22.5°.

dusya [7]

Answer:

$\sqrt{2} -1$

Step-by-step explanation:

22.5 degrees is half of 45 degrees (special angle for which we know exactly the value of all three basic trigonometric functions (sine, cosine, and tangent).

So we start recalling the formula for tangent of a half angle: $tan(\frac{\alpha }{2} )= \frac{1-cos(\alpha) }{sin(\alpha) }$

We need just the values of:

$sin(\alpha )=sin(45^o)=\frac{\sqrt{2} }{2}$

and of

$cos(\alpha )=cos(45^o)=\frac{\sqrt{2} }{2}$

to answer the question. Then, we use those values in the original formula for tangent of a half angle:

$tan(\frac{\alpha }{2} )= \frac{1-cos(\alpha) }{sin(\alpha) }\\tan(22.5^o)=\frac{1-\frac{\sqrt{2} }{2} }{\frac{\sqrt{2} }{2}} =\frac{2-\sqrt{2} }{\sqrt{2} } =\frac{2\sqrt{2}-2 }{2} =\sqrt{2} -1$

3 0

3 years ago

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Varia is studying abroad in Europe. She is required pay $3500 (in us dollars) per year to the university, however, she must pay

aksik [14]

Approximately four-hundred euros ((:

3 0

2 years ago

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Write an equation in slope-intercept form for the line that satisfies the following condition. slope 6, and passes through (5, 2

evablogger [386]

I can't remember if this is correct or not but I believe it would be 5 multiplied by 20 plus 6. As I said I don't Know for sure if this is correct or not. However, I hope it help

4 0

2 years ago

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