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
Yuri [45]
4 years ago
12

How much greater, in square inches, is the area of a circle of radius 20 inches than a circle of diameter 20 inches? Express you

r answer in terms of pi.
Mathematics
1 answer:
r-ruslan [8.4K]4 years ago
8 0

Answer:

  300π in²

Step-by-step explanation:

The circle with diameter 20 inches has a radius of 10 inches, so an area of ...

  A = πr² = π(10 in)² = 100π in²

The circle with a radius of 20 inches has an area of ...

  A = πr² = π(20 in)² = 400π in²

The larger circle is larger by ...

  (400π in²) -(100π in²) = 300π in²

You might be interested in
these mom bought an eight pack of juice boxes at the stores for 4$.find the unit rate for the juice box​
VMariaS [17]

Answer:j

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Help? wha does z equal?
Kisachek [45]
Mid segment= 1/2 length of the third side on a triangle
14/2
=Z=7
5 0
3 years ago
Read 2 more answers
How many quarters can fill a 1 liter bottle?
scoundrel [369]

3090 because I looked up

3 0
3 years ago
An oblique prism has a volume of 144 cubic units. The area of its base is 24 square units.
masha68 [24]

Answer:

ok..... so what is the question?

Step-by-step explanation:

8 0
3 years ago
in 2010 Small Town’s population was 1,759 people. If it’s declining by 2% each year, what would be the population in 2020? how l
BabaBlast [244]
If the population decreases by 2% each year, that can be represented by multiplying the population by 0.98 mathematically.  So if it decreases by 2% each year, an equation we can use is:

P*(0.98)^t,
where P is the current population and t is the number of years.

So in 2020, that would be 10 years from now, so the population would be:

1759*(0.98)^10 = 1437.23
Or about 1437 people.

How long till it is less than 1000?  We can set up an inequality and solve:

1759*(0.98)^t < 1000

(0.98)^t < 1000/1759
t*ln(0.98) < ln(1000/1759)
t > ln(1000/1759)/(ln(0.98))   (swap the sign because ln(0.98) is a negative #)
t > 27.95

So the population would be below 1000 in about 28 years, or 2038.
4 0
3 years ago
Other questions:
  • 19. What is the probability of tossing a penny and landing on heads two times in a row?
    7·1 answer
  • Solve for x. x3 = 343 A) 6 B) 7 C) 8 D) 9
    5·1 answer
  • There are 4,000 books in the towns library. Of these 2,400 are fiction. To find the percent of books that are fiction. First set
    5·1 answer
  • Can you answer them ?​
    8·2 answers
  • −3x+15x+7−8 plz help me
    15·1 answer
  • -5 ≤ -2; Add 7 to both sides<br><br> Help pls
    14·1 answer
  • I just need to know if this statement is true or false
    10·2 answers
  • Write an expression to describe a number x increased by 10
    12·1 answer
  • Identify the slope intercept equation of a line that has a
    7·1 answer
  • 1.) The graph of y = -7x - 10 is a ______ that shows the ________ to the equation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!