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jolli1 [7]
2 years ago
5

Can someone please help me with math​

Mathematics
1 answer:
Levart [38]2 years ago
6 0

Answer:

x = 71

Step-by-step explanation:

The first step to do is make a single triangle from the problem. That triangle can be BDH. We do still need the line BE, although that can wait.

Now find the last angle of the triangle. The sum of angles of a triangle always equal 180, so we can easuly find the missing angle.

180 - 40 - 31 =  109

So the missing angle is 109°. Now we can find the value of x.

We can use that angle because it sits right next to x on the same line. A line is 180° at any node as long as the line continues straight, so we simply subtract the angle we just found to find x.

180 - 109 = 71

Now we know x is 71

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Answer:

4y + 48 - 16x = 0        ~Solve for y~

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Step-by-step explanation:

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x(t) is the positon function
so just take the derivitive of 3t/π +cos(t) twice
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2nd derivitive is -cos(t)
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and that's in our range of being increasing
so the interval is (0,2)
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