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blagie [28]
3 years ago
5

Evaluate. 7P2 this is premutations and i dont get it

Mathematics
1 answer:
dybincka [34]3 years ago
5 0

Answer:

\large\boxed{_7P_2=42}

Step-by-step explanation:

_nP_k=\dfrac{n!}{(n-k)!};\ n!=1\cdot2\cdot3\cdot...\cdot n\\\\\text{We have:}\\\\_7P_2=\dfrac{7!}{(7-2)!}=\dfrac{7!}{5!}=\dfrac{5!\cdot6\cdot7}{5!}=6\cdot7=42

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3 years ago
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Let's solve your equation step-by-step.

2(3x−1)=−6x−2

Step 1: Simplify both sides of the equation.

2(3x−1)=−6x−2

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Step 3: Add 2 to both sides.

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How would you label this angle?<br><br> A) ∠C<br><br> B) ∠B<br><br> C)∠A<br><br> D) none of these
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3 years ago
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Step-by-step explanation:

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4 0
4 years ago
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