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saw5 [17]
3 years ago
6

Evaluate the factorial expression. 9!/(9-2)!

Mathematics
1 answer:
ra1l [238]3 years ago
8 0

Answer:

72

Step-by-step explanation:

\frac{9!}{(9 - 2)!}  \\  \\  =  \frac{9!}{7!}  \\  \\  =  \frac{362880}{5040}  = 72

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Hope this helps!
Vote my brainliest!
3 0
2 years ago
How do you solve this do i need to plpug in the formula
Sergeeva-Olga [200]

Answer:

  B.  -2, 2

Step-by-step explanation:

Apparently, we're to presume that f(x) is the line that is graphed. It has a y-intercept of +1 and a slope (rise/run) of 1/2. Its equation is ...

  f(x) = 1/2x +1

If we want points of intersection, we want to solve the equation f(x) = g(x) for the values of x that make it so.

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Squaring both sides, we get ...

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  1/4x² = 1 . . . . . . . . . . . . subtract x+1 from both sides

  x² -4 = 0 . . . . . . . . . . multiply by 4, subtract 4

  (x -2)(x +2) = 0 . . . . factor the difference of squares

  x = -2, 2 . . . . . . . . . values of x that make the factors zero

The solutions to f(x) = g(x) are x = -2 and x = 2.

_____

<em>Additional comment</em>

The attached graph shows the x- and y-values at the points of intersection. The solutions to f(x) = g(x) are only the x-values, -2 and 2.

The square of (ax +b) is ...

  (ax +b)² = a²x² +2abx +b²

The point-slope equation of a line is ...

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3 0
2 years ago
Six less than the product of 3 and a number is 12
tia_tia [17]
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6 0
2 years ago
First person to correctly answer will get brainliest
PtichkaEL [24]

Answer:

A = 20%         B = 36%

Step-by-step explanation:

35 in total bought

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16+9 = 25   => 9/25 who bought model B = 36%

3 0
3 years ago
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