Zadanie 9b
A horizontal pull requires 240 N. When θ = π/3, the required force is also 240 N. Show that .
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A horizontal pull requires 240 N. When θ = π/3, the required force is also 240 N. Show that .
The required force is 240 N both for a horizontal pull and when θ = π/3. The force is least when θ=α, with 0 < α < π/2. (i) Show that . (ii) Hence show…
Show that the bag contains 11 red markers.
Find the probability of at least seven gold markers in one play, to five significant figures.
One play costs 6 credits. At least seven red markers win 50 credits, at least seven blue markers win B credits (a positive integer), and at least seven gold markers win 15 credits. Otherwise the prize is zero. These prize events are mutually exclusive. Let X…
One play costs 6 credits. At least seven red markers win 50 credits, at least seven blue markers win B credits (a positive integer), and at least seven gold markers win 15 credits. Otherwise the prize is zero. These prize events are mutually exclusive. Let X…
One play costs 6 credits. At least seven red markers win 50 credits, at least seven blue markers win B credits (a positive integer), and at least seven gold markers win 15 credits. Otherwise the prize is zero. These prize events are mutually exclusive. Let X…
Find the opening’s area when θ=π/6.
Find its area A(θ) in the form , with positive integers a,b.
(i) Find A′(θ). (ii) Hence find the maximum opening area.