A group of middle school boys have a mean height of 167 cm and a range of 164 cm to 169 cm. A group of high school boys have a m
2 answers:
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Answer:
C) 405.3 ft
Step-by-step explanation:
A triangle is a polygon with three angles and three sides. Types of triangle are scalene, isosceles, equilateral, right angled triangle.
Given a triangle with angles A, B, C and the corresponding sides directly opposite to the angles as a, b, c. The sine rule states that:
In the triangle formed by point C, ship B and ship A, we have ∠A = 82°, ∠B = 78°, c = AB = 140 ft. Hence:
∠A + ∠B + ∠C = 180° (sum of angles in a triangle)
82 + 78 + ∠C = 180
∠C + 160 = 180
∠C = 20°
Using sine rule:
a = distance from Ship B to the signal fire at point C
The equation of the parabola is:
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The <em>equation </em>of a parabola of vertex (h,k) and focus (0,f) is given by:
- Vertex at the origin means that
.
- Focus (0,6) means that
Thus, the equation of the parabola is:
A similar problem is given at brainly.com/question/15165354