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**mathland****Member**- Registered: 2021-03-25
- Posts: 444

59. Write the area A of a square as a function

of its perimeter P.

60. Write the area A of a circle as a function

of its circumference C.

61. Path of a Ball You throw a baseball to a child

25 feet away. The height y (in feet) of the baseball is

given by y = − (x^2)/10 x^2 + 3x + 6 where x is the horizontal

distance (in feet) from where you threw the ball.

Can the child catch the baseball while holding a baseball glove

at a height of 5 feet?

Enjoy.

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**XaiDiv****Member**- From: Antarctica
- Registered: 2021-08-22
- Posts: 25

Hellooooooooooooo

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**Rastlin****Member**- Registered: 2022-02-24
- Posts: 1

1/4P*2=A

C=2πr. A=πr^2 A=C/2^2

y= -(25^2)10/25^2+3*25+6

625. 625. 75

6250/625+81

y=91

No, he couldn't dream of catching that ball.

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**pamshaw****Member**- Registered: 2021-12-07
- Posts: 21

According to the Question

In order to solve the questions, a little background information of angles and Pythagorean theorem is required.

59: Write the area A of a square as a function

of its perimeter P.

Given that the perimeter of the square = P

Therefore, length of one side of the square = P/4

Area of square = x ^2

A = P²/16

60. Write the area A of a circle as a function

of its circumference C.

Given Circumference = C

Therefore, Radius of the circle = C/2π

Area of a circle = π(C/2π)²

A = C²/4π

61. Path of a Ball You throw a baseball to a child

25 feet away. The height y (in feet) of the baseball is

given by y = − (x^2) /10 x^2 + 3x + 6 where x is the horizontal

distance (in feet) from where you threw the ball.

Can the child catch the baseball while holding a baseball glove

at a height of 5 feet?

y= - (25^2) 10/ 25^2 + 3*25 + 6

6250/625+81

Y =91

Also you can find it here: [mytutorsource.hk/blog/properties-of-right-angle-triangle-and-how-to-apply-pythagorean-theorem]

*Last edited by pamshaw (2022-04-12 19:56:46)*

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