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Oxana [17]
4 years ago
15

Solve the expression 7^P 2 (P = permutation)

Mathematics
1 answer:
Keith_Richards [23]4 years ago
3 0

Answer:

42

Step-by-step explanation:

_aP_b = \dfrac{a!}{(a - b)!}

_7P_2 = \dfrac{7!}{(7 - 2)!}

_7P_2 = \dfrac{7 \times 6 \times 5!}{5!}

_7P_2 = 7 \times 6

_7P_2 = 42

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Step-by-step explanation:

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3 years ago
The height of a triangle is 3cm less than twice the base. The area is 10cm2
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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