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guapka [62]
3 years ago
12

Simplify. Assume that a is a positive integer and a>2. (a-2)!/a!

Mathematics
2 answers:
Paul [167]3 years ago
8 0

Answer:

C. 1 / (a(a - 1))

Step-by-step explanation:

View Image

Just know that:

n! = n(n-1)!

   = n(n-1)(n-2)!

   = n(n-1)(n-2)(n-3)!

   = ...

alekssr [168]3 years ago
7 0

Answer:

c bb

Step-by-step explanation:

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what is 4823.04 rounded to the nearest millimeter?

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% of 6,000 = 4,500<br> Please help
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Answer:

450

Step-by-step explanation:

Solution for What is 75 percent of 600:

75 percent * 600 =

(75:100)* 600 =

(75* 600):100 =

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Now we have: 75 percent of 600 = 450

Question: What is 75 percent of 600?

Percentage solution with steps:

Step 1: Our output value is 600.

Step 2: We represent the unknown value with $x$x​.

Step 3: From step 1 above,$600=100\%$600=100%​.

Step 4: Similarly, $x=75\%$x=75%​.

Step 5: This results in a pair of simple equations:

$600=100\%(1)$600=100%(1)​.

$x=75\%(2)$x=75%(2)​.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

600

x​=

100%

75%​​

Step 7: Again, the reciprocal of both sides gives

x

600​=

75

100​

Therefore, $75\%$75%​ of $600$600​ is $450$

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3 years ago
One equation in a system is y=3x+7. Which equation gives the system no solution
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A

Step-by-step explanation:

Because I know how to do it

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A number is first increased by 20 and then doubled. The result is 2 less than 5 times
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