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ra1l [238]
2 years ago
14

A square is inscribed in a circle such that each corner touches the circle. Find a function that gives the area of the square as

a function of the radius of the circle.
Mathematics
1 answer:
Sliva [168]2 years ago
8 0

Answer:

A(r) = √2 * r

A(r) Domain is   R { r ;  r > 0}

Step-by-step explanation:

can i have brainliest plz it will be greatly aprciated

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You are inscribing a regular hexagon in a circle. You need to know the angle measure between the vertices. You divide 360° by wh
Svet_ta [14]

To know the angle measure between the vertices, you divide 360° by 3. Option C

<h3>Interior angles of a hexagon</h3>

Formula for interior angles of polygon is given as;

= ( n -2 ) × 180 degrees

Hexagon has 6 sides, n = 6

= ( 6 - 2 ) × 180° = 4 × 180° = 720°

Each interior angle = 720/ 6 = 120

To get 120 from 360

= \frac{360}{120}

= 3

Thus, to know the angle measure between the vertices, you divide 360° by 3. Option C

Learn more about a hexagon here:

brainly.com/question/1969956

#SPJ1

6 0
2 years ago
There are 30 boys in a sporting club. 20 of them play hockey and 15 play volleyball. Each boys plays at least one of the two gam
SVETLANKA909090 [29]

Answer:

<em>5 boys play all the two games</em>

<em>25 boys play only one game</em>

Step-by-step explanation:

<u>Sets</u>

There are two sets defined in the question: one for the boys who play hockey (H) and the other for the boys who play volleyball (V).

All the boys play at least one of the two games, so no elements are outside both sets.

There are 30 boys in total. 20 of them play hockey and 15 play volleyball. Since the sum of both numbers is greater than the total of boys, the difference corresponds to the boys who play both games.

Thus 20 + 15 - 30 = 5 boys play both games

Given that 5 boys are shared by both sets, from the 20 playing hockey, 15 play ONLY hockey. From the 15 boys playing volleyball, 10 play ONLY volleyball.

Thus 15 + 10 = 25 boys play only one game.

The Venn diagram is shown in the image.

7 0
3 years ago
A drive has a maximum speed of 10,000 revolutions per minute. If a disc has a diameter of 14 cm​, what is the linear​ speed, in​
Anettt [7]

The point 6 cm away from the center travels in a circle of circumference 2π*(6 cm) = 12π cm, so that it covers this distance per revolution, 12π cm/1 rev.

So the disk has a linear speed of

(6000 rev/min) * (12π cm/rev) = 72,000π cm/min

which is equivalent to

(72,000π cm/min) * (1/100,000 km/cm) * (60 min/h)

or approximately 135.7 km/h.

4 0
3 years ago
What are Factor pairs of 21 x squared
Serhud [2]
21x^2

you CAN'T factor 21x^2
4 0
4 years ago
Read 2 more answers
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 3, negative 7) and (0, 2). Everyth
Semenov [28]

Answer:

y < 3x + 2

Step-by-step explanation:

We will be solving this in slope-intercept form, which is a form that gives us the slope and the y-intercept of the graph explicitly:

y=mx+b, m is the slope and b is the y-intercept

We are given that everything to the left of the resulting line is shaded, so we know that the inequality sign will be < (less than). That already eliminates the second and fourth options. We also know the y-intercept, or the point where the graph crosses the y-axis and x is 0. because it is given to us (2, which comes from the point (0,2)). To figure out the slope, we can use the formula since we are given two points [(-3, -7) and (0, 2)] the line passes through. The formula, which is mapped out below, tells us that the slope is just the difference in rise (vertical movement) divided by the difference in run (horizontal movement).

m=\frac{-7-2}{-3-0} =\frac{-9}{-3} =3

Now we have all the information we need to find the inequality. The slope is 3, the y-intercept is 2, and the sign is <. The first inequality fits these criteria, meaning the correct linear inequality is y < 3x + 2

4 0
2 years ago
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