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babymother [125]
3 years ago
8

In a circle, what does the ratio A/r^2 represent?

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0
The ratio A/r² would represent \pi which is the circumference of a circle divided by its diameter.

You can see this because the area of a circle is \pir² and if you divided that by the radius squared, you are given pi which is the circumference of a circle divided by its diameter.
You might be interested in
What is the correct order of steps for bisecting angle ABC?
Marizza181 [45]

The correct order for bisecting angle ABC is F D E B C A. Option D

<h3>Steps in bisecting angles</h3>

The steps involved in bisecting angles are;

  • Place compass point on the vertex of the angle (point B).
  • Stretch the compass to any length that will stay OF the angle
  • Swing an arc so the pencil crosses both sides (rays) of the given angle. You should now have two intersection points with the sides (rays) of the angle
  • Place the compass point on one of these new intersection points on the sides of the angle. Stretch the compass to a sufficient length to place your pencil well into the interior of the angle, this should be within the rays of the angle
  • Place an arc in this interior
  • Without changing the span on the compass, place the point of the compass on the other intersection point on the side of the angle and make a similar arc. The two small arcs in the interior of the angle should be intersecting
  • Connect the vertex of the angle (point B) to this intersection of the two small arcs

From the listed steps, the correct order for bisecting angle ABC is F D E B C A. Option D

Learn more about bisectors here:

brainly.com/question/11006922

#SPJ1

8 0
2 years ago
Round to nearest tenth
Goshia [24]

Answer:

Step-by-step explanation:

this is exactly the same as the 1st one,  just  they put it in a different orientation.   sooo use law of cosines , where

QR = c

a = 12

b = 23

cos(120) = cos (P)

c = sq rt [ a^2+b^2﹣2*a*b*cos(P) ]

QR = sq rt [ 12^2 + 23^2 - 2* 12*23*cos(120) ]

QR = sq rt [ 144 + 529 - 552 * (-0.5 0 ]

QR = sq rt [ 673 + 276 ]

QR = sq rt [ 949 ]

QR = 30.8058

rounded to nearest 10th is

QR = 30.8  :)

6 0
3 years ago
): If (6x-3)(6x+3)=ax^2-b, what is the value of a? What is the value of b?
lesantik [10]
Answer: a = 36 and b = 9

Explanation:

(6x-3)(6x+3)

= 36x² - 18x - 18x - 9

= 36x² - 9



(6x-3)(6x+3) = ax² - b

36x² - 9 = ax² - b

a = 36 and b = 9

Hope it helps!
7 0
3 years ago
Plz heeeeeeelp me.....also don't mind the number 29 in the corner
Maksim231197 [3]

Answer:

b

Step-by-step explanation:

7 times 7 = 49 minus 3 = 46

5 0
3 years ago
Somebody know how to do this?
Lubov Fominskaja [6]

Answer:

x=1

Step-by-step explanation:

55+70=125

sum of angles in a triangle is 180 so

180-125=55

54x+1=55

x=1

6 0
3 years ago
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