3 years ago

Need helpppppppppppp

Mathematics

1 answer:

notka56 [123]3 years ago

6 0

Answer:

Step-by-step explanation:

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Evaluate the expression when b= -2, b2 +6b +9

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Answer:

Step-by-step explanation:

b= -2, b2 +6b +9

=-2(2)+6(-2)+9

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jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti

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A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; $^{n} C_{r}=\frac{n !}{(n-r) ! r !}$ .

Step 2:

In the given formula, n is the total number of options and r is the number of options to be selected.

For this question, $n = 13$ and $r=7$ .

So $^{13} C_{7}=\frac{13 !}{(13-7) ! 7 !} = \frac{13 !}{(6) ! 7 !} = 1,716.$

So a total of 1,716 selections are possible.

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3 years ago