Answer:
ANSWER
calculate
6×5!
reorder the terms
(use the commutative property to reorder the terms)
5!×6
Using n!x (n+ 1) × (n+2) ×...×(n + k)= (n+k)! , simplify the expression
6!
Calculate the factorial
Expand the expression
5 x 4 x 3! / 3!
Reduce the fraction
5 x 4
Multiply
ANSWER - 420
(nasa pic po solution)
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Answers & Comments
Answer:
ANSWER
SOLVING STEPS:
1. 3!×5!
calculate
6×5!
reorder the terms
(use the commutative property to reorder the terms)
5!×6
Using n!x (n+ 1) × (n+2) ×...×(n + k)= (n+k)! , simplify the expression
6!
Calculate the factorial
720 is the answer for number 1.
2. 5!/3!
Expand the expression
5 x 4 x 3! / 3!
Reduce the fraction
5 x 4
Multiply
20 is the answer for number 2.
3. 7! /3!2!
ANSWER - 420
(nasa pic po solution)
Expand the expressions
12 x 11x 10× 9× 8× 7 ×6 x 5 x 4× 3 / 3!
×
8 x 7 x 6 x 5! /5!
Reduce
12 x 11x 10 9 8 x 7 x 6 x 5 × 4 x 8 x 7 x 6
Calculate
Answer:
26824089600