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
goldfiish [28.3K]
3 years ago
14

What is the approximate uncertainty in the area of a circle of radius 3.1×104cm? Express your answer using one significant figur

e. ΔA =
Mathematics
1 answer:
Otrada [13]3 years ago
4 0
The area of a circle is expressed as:

Area = πr²
where r is the radius of the circle. This equation is used to calculate the area of the circle above. Calculation is as follows:

A = π(3.1 x 10^4 cm)² = 3.0 x 10^9 cm²

You might be interested in
What is m _BEC<br> OB) 70°<br> OA) 65°<br> OD) 120°<br> OC) 50°
just olya [345]

Answer:

C) 50°

Step-by-step explanation:

m\angle BEC= 180\degree-(65\degree+65\degree)

\implies m\angle BEC= 180\degree-130\degree

\implies m\angle BEC= 50\degree

5 0
2 years ago
Please Factor completely and explain thanks
Ivahew [28]
(4h+2)(2h+8)

4htines 2h= 8h^2
4htimes8=32h
2 times 2h=4h
2 times 8=16
Add Middle two you have
8h^2+36h+16
6 0
2 years ago
Read 2 more answers
enrique and levi together have 386 trading cards. if enruque has 221 tradibg cards, how many does lwvi have?
mafiozo [28]
Enrique+levi=386
enrique=221
subsitute
221+levi=386
subtract 221 frm botoh sides
levi=386-221
levi=165

levi has 165 cards
4 0
3 years ago
Read 2 more answers
The perimeter of a rectangle is 200 feet. Describe the possible lengths of a side if the area of the rectangle is not to exceed
zepelin [54]
The possible lengths are 333.3 
3 0
3 years ago
Brookside Grocery sponsored a team in the local charity run. The ages of the runners are shown below. 35, 23, 45, 21, 18, 19, 54
Zielflug [23.3K]

Answer:

4

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Which represents the solution to the absolute value equation? 5|2x-4|+1=11
    9·1 answer
  • PLEASE HELP ME PLZ!!!!!!!!! Can you anwser 13, 15, 17, 19, 21!!!!
    7·1 answer
  • Is 95.045 greater than less than or <br> equal two 95.545
    6·1 answer
  • Which line will have no solution with the parabola y – x + 2 = x2? y = –3x –3 y = –2x –3 y = 2x –3 y = 3x –3
    5·1 answer
  • In ADEF, DE = 25 cm, EF = 17 cm, and DF -- 20 cm<br> Which angle in the triangle is the smallest?
    15·1 answer
  • Can someone explain what the answer is to this and how? Thank u!!!
    8·1 answer
  • What fraction is less than 1/2
    5·2 answers
  • I have 4 factors three of my factors are 1, 2 and 10 what is my forth factor
    8·1 answer
  • Suppose you have two rectangular prism with dimensions 2 feet by 3 feet by 5 feet. You want to join prisms together to form a la
    12·1 answer
  • If the 2 at last is an power in the solution of the equation then what will be the value of x?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!