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Alecsey [184]
3 years ago
15

The answer I need this answer emergency pls help

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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A group of four boys (Alex, Bryan, Chris, and David) and five girls (Megan, Nancy, Olivia, Pauline, and Rebecc?
aliina [53]

Answer:

a) P = 362880 ways

b) P = 2880 ways

Step-by-step explanation:

a) We have four boys and five girls, they are going to sit together in a row of 9 theater seats, without restrictions

We have a permutation of 9 elements

P = 9!

P = 9*8*7*6*5*4*3*2*1

P = 362880 ways

b) Boys must seat together, we have two groups of people

4 boys  they can seat in 4! different ways

P₁ = 4!

P₁ = 4*3*2*1

P₁ = 24

And girls can seat in 5! dfferent ways

P₂ = 5!

P₂ = 5*4*3*2*1

P₂ = 120

To get total ways in the above mentioned condition, we have to multiply P₁*P₂

P = 24*120

P = 2880 ways

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3 years ago
A cylinder has a radius of
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Answer:785.4

Step-by-step explanation:

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3 years ago
At a rat of 64 kilometers per hour, how far will a car travel in 7 1/2 hours?_______
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We use the formula d = s*t where d is distance, s is speed and t is time.

d = 64km*7.5

d = 480km

Therefore, a car would tracel 480 km.

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3 years ago
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The product of 3! is
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Answer:15 is the answer. Product is what you get when you multiply two or more numbers together. In this case, the factors are 3 and 5. 3 x 5 = 15

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3 years ago
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Write the following equation in the general form ax by c = 0. y - x - 1 = 0
Elena-2011 [213]

If you would like to write y - x - 1 = 0 in the general form, you can do this using the following steps:

The general form of the equation is: ax + by + c = 0.

y - x - 1 = 0

-x - y - 1 = 0


The correct result would be <span>-x - y - 1 = 0</span>.

8 0
3 years ago
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