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Lady bird [3.3K]

3 years ago

9

K smart ppl i NEED YOUR HELP!!! Movie tickets for senior citizens cost 0.8 times as much as regular adult tickets. Adult tickets

cost $7.50. How much do senior citizen tickets cost?

1 answer:

Grace [21]3 years ago

8 0

Answer:

$6

Step-by-step explanation:

$7.50 x 0.8 = 6

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Answer:

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8 0

3 years ago

Read 2 more answers

Which expression represents the area of the shaded region?

irina1246 [14]

Given:

A circle of radius r inscribed in a square.

To find:

The expression for the area of the shaded region.

Solution:

Area of a circle is:

$A_1=\pi r^2$

Where, r is the radius of the circle.

Area of a square is:

$Area=a^2$

Where, a is the side of the square.

A circle of radius r inscribed in a square. So, diameter of the circle is equal to the side of the square.

$a=2a$

So, the area of the square is:

$A_2=(2r)^2$

$A_2=4r^2$

Now, the area of the shaded region is the difference between the area of the square and the area of the circle.

$A=A_2-A_1$

$A=4r^2-\pi r^2$

$A=4r^2-\pi r^2$

$A=r^2(4-\pi )$

Therefore, the correct option is (a).

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