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kirill [66]
3 years ago
5

PLEASE HELP!!! Given angle circled dash=208° and a right triangle inscribed within a circle of radius 5, what is the value of x

of the corresponding coordinate?
-2.34
-4.41
2.34
4.41

Mathematics
1 answer:
natta225 [31]3 years ago
7 0

Answer:

  -4.41

Step-by-step explanation:

208° is a 3rd-quadrant angle, so its x-coordinate will be negative. Your calculator can tell you that 5 times the cosine of this angle is -4.41, or you can refer to a diagram.

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The bearing of P from Q is 046º.
a_sh-v [17]

Answer:

  175°

Step-by-step explanation:

Bearing angles are usually measured clockwise from North. Reverse bearing angles differ from forward bearing angles by 180°. These relations and the usual angle sum relation for a triangle can be used to solve this problem.

Angle PQR will be the difference in the bearings from Q to P and Q to R:

  ∠PQR = 124° -46° = 78°

Triangle PQR is isosceles, so the base angle at P will be ...

  ∠QPR = (180° -78°)/2 = 51°

__

The bearing from P to R will be 51° less than the bearing from P to Q. The bearing from P to Q is 180° more than the bearing from Q to P.

  PR bearing = PQ bearing - ∠QPR

  = PQ bearing - 51°

  = (46° +180°) -51° = 175°

The bearing of R from P is 175°.

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PLS HELP. BRAINLIEST/5 STARS TO CORRECT ANSWER
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Where p is the distance the focus is above the vertex, the equation of a parabola with vertex (h, k) can be written as

... y = 1/(4p)·(x -h)² +k


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3 years ago
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