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3 years ago

How many arrangements of 3 types of flowers are there if there are 6 types to choose from?,

1 answer:

5 0

<span>Number of flowers = 6 Number of flowers to choose = 3 We need to solve it using permutations: 6!/3!=1*2*3*4*5*6/1*2*3 = 720/6 = 120 The answer is: there are 120 different arrangements using 3 types of flowers out of 6 types available</span>

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before sales tax,the classical music CD cost $15.Jan gave the clerk a $20 bill and recieved $4.17 change.what is the rate of sal

Harman [31]

B.4% at least that's what I got lol I did it at least twice in my head

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3 years ago

Completing the square:

vichka [17]

Answer:

Step-by-step explanation:

Key to this method is remembering that

$(a+b)^2 = a^2 + 2ab + b^2$

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.

6/2 = 3, so add $3^2 = 9$

$x^2+6x+9 = (x+3)^2$

So, c=9

Similarly, for the other two,

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You don't really have to worry about the sign, since squaring will always make it positive

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3 years ago

Write 0.43 as a fraction, reduced to the lowest terms

alexdok [17]

Answer:

43/100

Step-by-step explanation:

It would have to be 43/100 becuase 43 is a prime number, therefore it cannot be simplified.

8 0

3 years ago

Pleasee its pretty easy someone helpp

SVEN [57.7K]

Answer:

81.5, 9, 180

Step-by-step explanation:

28.

c=9

9x9=81

a=1/2

81+1/2=81.5

29.

9x1/2=4.5

4.5x2=9

30.

15x15=225

9x5=45

225-45=180

hope this helps!!!

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3 years ago

At a banquet hall, each table requires 18 plates. The kitchen has 387 plates available. How many full tables can be set?

N76 [4]

21 full tables because if you divide the amount of plates you have by the amount of plates needed for each table you’ll get 21.5 but they asked for full tables so that would be 21

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3 years ago