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4 years ago

11

How do you do this? I need to know the measurements of all the angles that are labeled

1 answer:

nekit [7.7K]4 years ago

4 0

Im assuming that's a regular octagon. The sum of the angles in an octagon is 1080, so that means each individual angle is 135.

m<1 = 135.

Not completely sure how to get the others. Is there any information on the triangles or the octagon that isn't included in the picture? Lmk if you do and I can solve the rest

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2 years ago

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4 years ago

Read 2 more answers

Find the equation of the curve that passes through the point (x, y) = (0, 0) and has an arc length on the interval x is between

Pavel [41]

Answer:

$\displaystyle y=\sin(x),\text{ where } 0\leq x\leq\pi/4$

Step-by-step explanation:

The curve passes through the point (x, y) = (0, 0) and has an arc length on the interval [0, π/4] given by the integral:

$\displaystyle \int_{0}^{\pi/4}\sqrt{1+\cos^2(x)}\, dx$

And we want to find the equation of the curve.

Recall that arc length is given by:

$\displaystyle L=\int_a^b\sqrt{1+\Big(\frac{dy}{dx}\Big)^2}\, dx$

Rewrite our original integral:

$\displaystyle \int_{0}^{\pi/4}\sqrt{1+(\cos(x))^2}\, dx$

So:

$\displaystyle \frac{dy}{dx}=\cos(x)$

It follows that:

$\displaystyle y=\sin(x)+C$

Using the initial condition:

$0=\sin(0)+C\Rightarrow 0=0+C\Rightarrow C=0$

The equation for our curve is:

$\displaystyle y=\sin(x),\text{ where } 0\leq x\leq\pi/4$

3 0

3 years ago

I don't know how to do? <br><br>please help me!!!

guapka [62]

Answer:

8/second

multiply by 3600

= 28800 /hour (revolutions)

pi*r^2

pi*0.8^2 = 2.0106192983 m

approx = 2.011 m = 0.0020106192983 km = 0.002012 km approx

28800*0.0020106192983 = 57.905835791 km

8 0

3 years ago

Which value would make the M/4 > 12<br><br>ITS NOT 48

grin007 [14]

Answer:

The answer is 48

Step 1. you simplify both sides

1

- m > 12

4

Step 2. multiply both sides by 4

4 * ( 1/4 m ) > (4) * (12)

m>48

7 0

3 years ago