If you move 50 m in 10 seconds what is your speed
2 answers:
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Answer:
Step-by-step explanation:
a). By applying tangent rule in the triangle,
tanθ =
θ =
θ = 36.87°
Therefore, θ < 45°
b). By using cosine rule in this triangle,
cosθ =
cosθ =
θ = 45°
c). By using tangent rule,
tanθ =
θ =
θ = 75.96°
θ > 45°
Answer:
Step-by-step explanation:
We have to fill the blank.
The number of permutations of n elements taken r at a time is given by the formula:
Permutation is an arrangement of subsets of a larger set in regard with order of the arrangement.
where n is the the larger set and we have to choose r items from n such that there is no repetition.
In permutation, order is important.