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
Ann [662]
2 years ago
5

Sally needs to find the circumference of a circle with a diameter of 20 inches. She uses a calculator to find the circumference.

Which answer is
reasonable?
A. 60.133574 in
B. 70.893927 in
C. 62.831185 in
D. 65.531319 in
Mathematics
2 answers:
Vlad1618 [11]2 years ago
7 0

Circumference = pi*diameter

C = pi*20

C = 20pi

When I used my calculator to compute 20*pi, I get approximately 62.83185

This is somewhat close to what choice C is saying. The difference is that choice C has an extra 1 buried inside it. I'm not sure if your teacher made a typo.

Sphinxa [80]2 years ago
3 0
C

Circumference of a circle: C = 2πr π = 3.14 r = 20/2= 10
C = 2*3.14*10
6.28*10= 62.8

Hope that helps!
You might be interested in
If 5y - 8 < 12, what is the maximum possible value of 10y ?
LuckyWell [14K]

Answer: The maximum possible value of y is 30 ;)

3 0
3 years ago
WRITE a Linear FUNCTION, f, with the given values:<br> f(-4) = -5 and f(2) = -3
Crazy boy [7]

Answer:

answer to the question is A

8 0
2 years ago
After t seconds, a ball in the air from the ground level reaches a height of h feet given by the equation h= 144t-16t^2 . After
Effectus [21]
H=0
Therefore:
144t-16t²=0
t (144-16t)=0
We have two equations:
1)
t=0    (when the ball is released)
2)
144-16t=0
-16t=-144
t=-144 / -16=9  (this is the time )

Answer: the ball hit the ground in 9 s. 
3 0
3 years ago
Find the distance between the two points. Round your solution to 2 decimal points.
VashaNatasha [74]
Notice the grid, the points are (-5, -2) and (4, -1), thus

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\ \quad \\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~{{ 4}} &,&{{ -1}}~) &#10;%  (c,d)&#10;&&(~{{ -5}} &,&{{ -2}}~)&#10;\end{array}~~&#10;%  distance value&#10;d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}&#10;\\\\\\&#10;d=\sqrt{[-5-4]^2+[-2-(-1)]^2}\implies d=\sqrt{(-5-4)^2+(-2+1)^2}&#10;\\\\\\&#10;d=\sqrt{(-9)^2+(-1)^2}\implies d=\sqrt{81+1}\implies d=\sqrt{82}
6 0
3 years ago
X + 2 + x = 22 I need to show my work. Please help. No false answers please.
Minchanka [31]
2x + 2 = 22
2x = 20
X = 10
3 0
2 years ago
Read 2 more answers
Other questions:
  • Which type of function should Sophia use to model the shape of the lens? linear exponential quadratic square root
    11·2 answers
  • If anyone is there, what would be the area to this? A= b1 b2 x h /2
    6·1 answer
  • A screen door spring has a spring constant of 188 N/m, and stretches 0.292 m when the door is opened. What force does it exert?
    14·2 answers
  • Find the midpoint of the line segment (7,-2), (-7,4)
    10·2 answers
  • Calculate the sum 2/9+5/9
    15·2 answers
  • A rectangle board is 1.2 meters long and 0.8 meters wide. What is the area of the board in millimeters
    6·1 answer
  • One full revolution of a circle is 180º.<br> 0<br> True<br> False
    13·2 answers
  • A consumer organization estimates that 35% of the households in a particular community have one television set, 39% have two set
    15·1 answer
  • PLEASE I NEED THE ANSWER ASAP
    10·1 answer
  • Write a quadratic function whose zeros are 2 and -12. 60 Point question Answer ASAP for brainliest!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!