Answer:-0.00714
Step-by-step explanation: STEP
1
:
Simplify —
5
Equation at the end of step
0 - — ÷ 7 ÷ 4
STEP
2
Divide — by 7
0 - —— ÷ 4
35
3
Divide —— by 4
0 - ———
140
4
Final result :
-1
——— = -0.00714
Answer:
1680
Step-by-step explanation:
nPr = n!/(n-r)!
Therefore;
8P4 = 8!/(8-4)!
we get;
= 8!/4!
= (8×7×6×5×4×3×2×1)/(4×3×2×1)
= 40,320/ 24
= 1680
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