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
A 20-foot ladder is leaning on a
Gwar [14]

Answer:

From the bottom of the building to the top of the ladder, it is 16 feet.

Step-by-step explanation:

Depending on what grade you are in, you might know the Pythagorean theorem, whose equation is a^2+b^2=C^2 The measurement of the leaning ladder (20ft) is the hypotenuse of the right triangle, the distance from the bottom of the ladder to the building is the leg length (12ft). With this information we know the "c" of the equation, and the "b" or "a" of the equation. If we plug in the number for the letter the equation will look like this:  

12^2+b=20^2. 20 to the second power is 400, and 12 to the second power is 144. You can use the subtraction property of equality and get b^2=256. Use can use a calculator for this part. The square root of 256 is 16, which leaves the equation with b=16

3 0
2 years ago
Given that events A and b are independent p(A) =0.60 and P(B)=0.30, what is P(A and B)?
myrzilka [38]
P(a)*p(b)=0.6*0.3=0.18
3 0
3 years ago
I need help with this question
IgorC [24]

The expression that shows the total gallons is 0.5gallon/1 day*16cups/1gallon * 7days/1week

<h3>Dimensional Analysis</h3>

From the given question, we are told that Katrina drinks 0.5 gallons per day. In order to determine the total cup that she drank in a a week, we will have:

Total gallons in a week. = 0.5gallons/1 day * 7days/1

Total gallons in a week = 3.5 gallons

Since 1 gallon. = 16 cups, then;

3.5 gallons = 16cups/1gallon * 3.5gallons

3.5 gallons = 56 cups

Hence the expression that shows the total gallons is 0.5gallon/1 day*16cups/1gallon * 7days/1week

Learn more on dimensional analysis here: brainly.com/question/18559676

#SPJ1

5 0
1 year ago
Suppose you open a bank account. Every month you deposit $40. Write an equation that relates the total number of dollars deposit
alekssr [168]
$40=T >?=m 
 
T= $40,$80,$120,etc.
m=1,2,3,etc
4 0
3 years ago
You and your friends want to rent a limo on prom night.
ikadub [295]
Hey there!

You would be able to rent the limo for 4 hours plus the booking fee.

75 x 4 = 300

300 + 50 = 350

350 = 350

Hope this helps you! :)

Hugs!
- Nicole
4 0
3 years ago
Read 2 more answers
Other questions:
  • Yvette is considering taking out a loan with a principal of $16,200 from one of two banks. Bank F charges an interest rate of 5.
    10·2 answers
  • I have two questions.
    10·1 answer
  • Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find the percentile corresponding to the dat
    13·1 answer
  • Where Q and R are polynomials and the degree of R is less than the degree of B.
    11·1 answer
  • Johnny will work 15 hours a week during the 36 week school year, and 40 hours a
    10·1 answer
  • You decide to put new carpet in your living room and family room. The combined square footage (area) of both rooms is 535 square
    7·1 answer
  • *EXTRA PTS* answer #2 - #5
    13·1 answer
  • The coordinates of the verticles of
    6·1 answer
  • Tickets to the end of year carnival are 18$ for 4 tickets what is the cost of 9 tickets
    12·2 answers
  • A teacher instructed her students to draw an isosceles triangle that has at least one angle that
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!