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
vodka [1.7K]
2 years ago
11

You have two circular flower beds, as shown. The sum of the areas of two flower beds is 136 pi square feet. Find the radius of e

ach bed.
Mathematics
1 answer:
finlep [7]2 years ago
8 0

Answer:

Radius of larger flower bed = 10 feet

Radius of smaller flower bed = 6 feet

Step-by-step explanation:

<u>Complete question:</u>

"You have two circular flower beds, as shown. The sum of the areas of two flower beds is 136 pi square feet. Find the radius of each bed.<em>"</em>

<em>Radius of larger flower bed = r</em>

<em>Radius of smaller flower bed = r - 4</em>

<em />

Now,

Area of circle is  \pi r^2

Since, total area is 136\pi, we can write:

\pi r^2 + \pi (r-4)^2=136\pi

Expanding and solving for r:

\pi r^2 + \pi (r-4)^2=136\pi\\r^2+(r-4)^2=136\\r^2 + r^2 - 8r + 16 = 136\\2r^2-8r-120=0\\2(r+6)(r-10)=0\\r=-6,10

Radius cannot be negative, so r = 10  &  r-4 = 10 -4 = 6

Radius of larger flower bed = 10 feet

Radius of smaller flower bed = 6 feet

You might be interested in
Please urgent!!!!!!!!!!!!
Rus_ich [418]

Answer:

the last one

Step-by-step explanation:

6 0
2 years ago
what is the y-intercept of the equation of the line that is perpendicular to the line y = 3/5x 10 and passes through the point (
bazaltina [42]
Perpendiculare means the slopes multiply to -1

y=3/5x+10
slope is 3/5
3/5 times what is -1
-5/3 is answer

slope of perpenduclar is-5/3 find y int
y=-5/3+b
point given is (15,-5)
x=15
y=-5

-5=-5/3(15)+b
-5=-25+b
add 25 to both sides
20=b

the yintercept is y=20 or the oint (0,20)
6 0
3 years ago
Substitute the value in for the variable. Then solve. Remember your order of operations!
inna [77]

Answer:

4

Step-by-step explanation:

36/9 =4

When you see an x put 9 ;)

6 0
2 years ago
Read 2 more answers
I need help with this
VikaD [51]
This should help just try to use this

4 0
3 years ago
Carbon-14 has a half-life of 5,730 years. If a sample contained 70 mg originally, how much is left after 17,190 years?
kow [346]

17,190 / 5,730 = 3. This means we must divide 70mg in half 3 times

70 / 2 = 35

35 / 2 = 17.5

17.5 / 2 = 8.75

There will be 8.75 mg left after 17,190 years.

7 0
3 years ago
Other questions:
  • Expand and Simplify:<br> (3x + 5) (x - 2)<br> -Please Help! Due in for 4:30pm! Xx
    12·1 answer
  • What is equivalent to 4 2/3
    8·1 answer
  • Robin is twice as old as Earl, and in 6 years he will be three times as old as Adam, who is 8 years younger than Earl. Find thei
    14·1 answer
  • What is 5/6 as a decimal​
    11·2 answers
  • YOU HAVE TO MATCH THEM !!
    12·2 answers
  • Help me find value of y please !!:]
    9·1 answer
  • If you have the equations 2x + 3y = 18 and y = 2x + 12 and use the substitution method to solve, what would be the value of x? A
    12·1 answer
  • Latoya buys candy that costs 5 per pound. She will spend more than $30 on candy. What are the possible numbers of pounds she wil
    9·2 answers
  • You have two cards with a sum of (-12) in your hand. What two cards could you have? *
    8·1 answer
  • Find the value of a that makes the ordered pair a solution of the equation
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!