Mathematics, 06.10.2019 21:00 lizettediego10

The circular face of a watch has an area that measures between 800 and 900 square millimeters. what could be the radius of the watch face? use 3.14 for .

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Answer from: gg808

Answer
the radius of the face would lie between 15.96 mm and 16.93 mm.

explanation
the area of a circle is given by;
area = πr²

where area = 800,
πr² = 800
r² = 800/3.14
=254.777
r = √254.777
= 15.96 mm

when area = 900
πr² = 900
r² = 900/3.14
= 286.624
r = √ 286.624
= 16.93 mm

the radius of the face would lie between 15.96 mm and 16.93 mm.

Answer from: kitt90335

A= pi * r^2
800 = 3.14 * r^2
800/3.14 = r^2
255 = r^2
sqrt 255 = r
15.9 rounds to 16mm = r

check..
a = 3.14 * 16^2
a = 3.14 * 256
a = 803. in between 800 and 900

so ur answer, i believe, is 16mm because 17mm would be too much and 15mm wouldn't be enough

Answer from: Quest

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.

Answer from: Quest

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

Identify the transformation that maps the figure with center (7, 1) onto itself. a) rotate 180° cloc

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The circular face of a watch has an area that measures between 800 and 900 square millimeters. what...

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