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
Vedmedyk [2.9K]
3 years ago
13

The radius of a circle is increased from 8.008.00 to 8.038.03 m. Estimate the resulting change in​ area, and then express the es

timate as a percentage of the​ circle's original area. The estimated change in area is nothing msquared2.
Mathematics
1 answer:
Reika [66]3 years ago
7 0

Answer:

Step-by-step explanation:

The area of a circle is expressed as

Area = πr^2

Where r = radius of the circle

π = constant = 3.14

The radius of a circle is increased from 8.00800 to 8.03803 m. This means that the original radius of the circle is 8.00800 and the new radius of the circle is 8.03803

Area of original circle =

3.14 × 8.00800^2 = 201.36212096

Area of new circle =

3.14 × 8.03803^2 = 202.87516852203

Increase in area = 202.87516852203 - 201.36212096

= 1.51304756203

Expressing the change as a percentage, it becomes

1.51304756203/201.36212096 ×100

Percentage change = 0.75 %

You might be interested in
-25-6= -25 + -6 = -31
VashaNatasha [74]

30 + 40 1- 40 = 69

Step-by-step explanation:

4 0
3 years ago
A cafeteria serves 120 pints of milk each day . how many quarts of milk does the cafetieria serve each day
frosja888 [35]

For this case we have by definition:

1 Pint is equal to 0.5 quart

We must indicate how many quarts there are in 120 pints.

Making a rule of three we have:

1 pint --------------------> 0.5 quart

120 pints -------------> x

Where the variable "x" represents the number of quarts equivalent to 120 pints.

x = \frac {120 * 0.5} {1}\\x = 60

Thus, 120 pints are equivalent to 60 quarts

Answer:

Option C

3 0
4 years ago
Use the discriminant to determine the number of real solutions for the equation below.
Murljashka [212]

Answer:

there is one real solution

Step-by-step explanation:

use the quadratic formula. what is in the square root is called the discriminant.

since it came out to 0 there is one real solution

5 0
4 years ago
Plz help and show work! easy points! It needs factored​
Bad White [126]

Answer: 2(x2 + 10x + 16)

Step-by-step explanation: You need to factor the whole equation by 2. In other words divide each term by 2 and put parentheses to indicate factoring. You should get 2(x2 + 10x + 16)

4 0
4 years ago
Read 2 more answers
A steel worker dropped his wrench off the top of a new high rise building. How far will the wrench fall in 3 seconds?
rosijanka [135]
Using  S = ut + 1/2gt²,   from rest, u = 0

S = 1/2gt²,               g ≈ 9.8 m/s²

S = <span>1/2 *9.8*3²

</span>S = 0.5<span> *9.8*3*3 
</span>
<span>S ≈ 44.1 m</span>
6 0
3 years ago
Other questions:
  • Debbie works at TelecoM undo. She earns $60 and $0.75 for each phone call she makes. Makayla makes the same amount as Debbie whe
    10·1 answer
  • Which expression is equivalent to the following expression? 2(x + 7)
    14·2 answers
  • Use the net price rate to calculate the net price for 10 boxes of computer paper if the unit price is $13.59 and a single trade
    7·1 answer
  • Elijah earn $200 for 8 hours of work what is the unit rate in miles per hour
    15·2 answers
  • Can I get help on finding the volume of a cone ? :/
    14·2 answers
  • How many lines of symmetry does the figure shown have?
    9·2 answers
  • The best description of a dilation of a figure is:
    10·2 answers
  • Please answer it's about markups and markdowns question you will get brainliest if you get it right
    15·1 answer
  • PLEASE HELP ASAPP!!!!! NO JOKES ONLY SERIOUS ANSWERS
    8·1 answer
  • What is the area of triangle TUV?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!