Step-by-step explanation:
cot(x) cos(x) + cot(x) = 0
cot(x) (cos(x) + 1) = 0
cot(x) = 0 or cos(x) = -1
cot(x) = 0
x = π/2, 3π/2
x ≠ 0, π
cos(x) = -1
x = π
Therefore, the answer is x = π/2, 3π/2.
The diameter of what i hpe its a circle because if so then <span>The radius is the distance from the center of the </span>circle<span> to its edge. For example, if the radius of the </span>circle<span> is 4 cm, then the </span>diameter<span> of the </span>circle<span> is 4 cm x 2, or 8 cm. If you</span>know<span> the circumference of the </span>circle<span>, divide it by π to get the </span>diameter<span>.</span>
The geometric sequence that shows the height of the fourth bounce in bold is B) 9, 8.1, 7.3, 6.6,...
The tangent ratio is
tan(38°) = opposite/adjacent = (height of cliff)/(distance to base)
Multiplying the equation by the denominator gives
height of cliff = (80 ft)*tan(38°) ≈ 62.5 ft