In how many way can five people sit next to each other in a theater row ?

Mathematics

1 answer:

lyudmila [28]3 years ago

5 0

I think it would be 25 ways

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Please answer the attached question by selecting of the the given answers.

Alchen [17]

Answer:

The correct answer is option A. Base = 11 cm and height = 13 cm

Step-by-step explanation:

It is given that, height of a triangle is 2 cm more than its base.Then height is increased by 2 cm.Then the area of triangle becomes 82.5 cm²

To find the base an d height of original triangle

Let x be the original base 'b' then the height h = x + 2

New height h = x + 2 + 2 = x + 4

Area = bh/2

82.5= (x(x + 4)/2

165 = x² + 4x

x + 4x - 165 = 0

Solving we get x = 11 and x = -15

Take positive value x = 11

Therefore base = 11 and height = x + 2 = 13 cm

The correct answer is option A. Base = 11 cm and height = 13 cm

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A scientist wants to research the potential spread of germs by contact. she knows that the number of possible handshakes within

Viefleur [7K]

Given that the number of possible handshakes within a group of n people is given by the equation:

 $N= \frac{1}{2} (n^2-n)$

Given that there are 105 people at a party, the number of possible handshakes is given by:

 $N= \frac{1}{2} (105^2-105) \\ \\ = \frac{1}{2} (11025-105)=10920$

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3 years ago

What's the next three numbers in this inductive reasoning pattern 10,7,4,1

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10, 7, 4, 1, -2, -5, -8

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3 years ago

For the trapezoid ABCD E and F are the midpoints of

lawyer [7]

Answer:

$EF=\frac{b+d}{2}\ units$