Answer: 6 shoelaces
Step-by-step explanation:
Since 1 pair of shoes has 2 shoelaces, 3 x 2 = 6
3 pairs x 2 shoelaces = 6 shoelaces
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Answer:
it is 4.2 n
Step-by-step explanation:
because you have to divide 525/125=4.2
You would just do 13+15+26+32 which would equal 86mm
F(x) = cos x
f'(x) = -sin x
f''(x) = -cos x
f'''(x) = sin x
f''''(x) = cos x
90/4 = 22 Remainder 2
Therefore, 90th derivative of f(x) = cos x is -cos x.
