1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kupik [55]
3 years ago
5

Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circl

e B is 5 inches, the circumference is 15.70 inches, and the area is 19.625 square inches..
Part A: Using the formula for circumference, solve for the value of pi for each circle.
Part B: Use the formula for area and solve for the value of pi for each circle.
Part C: What observation can you make about the value of pi for circles A and B?
Mathematics
1 answer:
torisob [31]3 years ago
6 0
Please note that pi has just one value.  The only difference stems from round-off error when you don't use all of the digits following "3.14159 ... " to represent the value of pi.  The formula for circumference is C = 2 pi r, or C = pi d, 
where r=radius and d=diameter.

Circle A:  Diameter 9 inches and Circumference of 28.26 inches

If the diameter is 9 inches, then C = 28.26 inches = pi (9 inches).  Divide 28.26 inches by 9 inches.  Note that you MUST round off the ratio (pi) that you obtain, since 28.26 has 4 significant figures and 9 has just one.

28.26
------- = 3.14, but because 9 has just one significant figure, you must round 
    9           this 3.14 to just 3.


You might be interested in
6th grade math help me pleaseeee
Helga [31]

Answer:

First one.

Step-by-step explanation:

0.3/3=0.1 ==> 0.1$ per meter

0.77/7 ==> 0.11$ per meter

The first option is cheaper, therefore better to buy if you agree with "the cheaper. the better".

4 0
3 years ago
I need help with this !!
Zanzabum

Answer:

the twins will always have the same age

Step-by-step explanation:

the equation for jasmine's age is 2(3x+6), while the equation for james's age is 3(2x+4)

2(3x+6) = 2*3x + 2*6 = 6x + 12

3(2x+4) = 3*2x + 3*4 = 6x + 12

since both have the same equation, both will be the same age when you plug in the same x value

7 0
3 years ago
2) (-8, -9). (4.-10)
const2013 [10]

Answer: √

145 or 12.04159457 for the decimal ways try 12

Step-by-step explanation: 12.0415945787923

Midpoint (−2,−9.5)

Slope −0.0833333333333333

x intercept −116.00

y intercept −9.67

4 0
3 years ago
Read 2 more answers
Determine the measures of the angles of AMNO if the measures of the angles are in the ratio 2:4:6.
masha68 [24]

Answer:

60,120,180

Step-by-step explanation:

360:(2+4+6)=30

30×2=60

30×4=120

30×6=180

8 0
3 years ago
Ron what to make a rectangle basketball court if the length is 4 whole number 3/4 yd and the width is 3 whole number is 2/5 yd.
hoa [83]
A = L * W

A = 4 3/4 * 3 2/5.....turn them into improper fractions
A = 19/4 * 17/5
A = 323/20 or 16 3/20 yds^2 <==
6 0
3 years ago
Other questions:
  • What information would allow you to identify angle BFA and angle AFE as complementary angles?
    5·1 answer
  • Nico puts some cupcakes in the oven at 8:55 they need to bake for 25 minutes. When should he take them out the oven?
    14·2 answers
  • Find the radius of a circle with area equal to 153.86 square feet.<br> R = ?
    5·2 answers
  • What is the percentage decrease of 3 hours to 1/2 hours<br><br>Im new at this kind of math
    6·1 answer
  • SOMEONE HELPPP PLEASE!! Complete the table to represent the number of seashells in the collection after the first four summers
    10·1 answer
  • Help! what is 20 +83+38+737+736+623+794+978+394+746+648+90+52+90+34+1= ?<img src="https://tex.z-dn.net/?f=x_%7B123%7D%20877384"
    15·1 answer
  • WILL MARK BRAINLIEST PLS HELP
    7·1 answer
  • Neeeeeeed helpppppppppppppp
    14·2 answers
  • Can someone please determine this for me
    5·1 answer
  • Next time, the rabbit from the previous problem start at 10 where on the number line can he be after the same three jumps?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!