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
Mama L [17]
3 years ago
5

Find the radius of a circle with area equal to 153.86 square feet. R = ?

Mathematics
2 answers:
otez555 [7]3 years ago
7 0

Our formula: A = π r2

The area, 'A', of the circle is 153.86 inches squared.

' π ' is pi, an irrational number with a value of approximately 3.14.

'r' is the radius, which is what we are solving for here.

Plugging in, we get:

153.86 = (3.14)r2

weeeeeb [17]3 years ago
3 0

Answer:

7 feet

Step-by-step explanation:

The area of a circle can be found using:

a=3.14*r^2

We know that the area is 153.86 square feet, so we can substitute 153.86 in for a.

153.86=3.14*r^2

Now, we have to solve for r. To do this, we need to get r by itself. First, divide both sides by 3.14

153.86/3.14=3.14*r^2/3.14

153.86/3.14=r^2

49=r^2

Now, r is being squared. The opposite of squared is the square root. So, take the square root of both sides .

√49=√r^2

√49=r

7=r

The radius is 7 feet

You might be interested in
Grace took one of her friends out to lunch. The lunches cost $100 and she paid 9% sales tax. If Grace left a 15% tip on the $100
8_murik_8 [283]

Answer:

124

Step-by-step explanation:

100 x .09=9

100 x ,15=15

9 + 15=24

100+24=124

3 0
3 years ago
Somebody help me plz!! It’s due tomorrow
Ilia_Sergeevich [38]
I think it is 50, the first one, you will count 6, on each link 4 more is added so when adding 11 more links it would be 44+6 which is 50
6 0
3 years ago
Round 236 to the nearest tenth
bekas [8.4K]
Is it .236 cuz then you would round it to,.24
7 0
3 years ago
Read 2 more answers
Brainliest to whoever gets it right first
Inga [223]
I just guessed and it is 108
3 0
3 years ago
Solve the system of equations.
guajiro [1.7K]

Answer:

<u>Option b. (x = 3, y = 20, z = -14)</u>

Step-by-step explanation:

Given:

2x + 2y + 3z = 4

5x + 3y + 5z = 5

3x + 4y + 6z = 5

Solve using Cramer’s rule

∴ \left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] =\left[\begin{array}{ccc}4\\5\\5\end{array}\right]

∴A = \left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] = -1

Ax = \left[\begin{array}{ccc}4&2&3\\5&3&5\\5&4&6\end{array}\right] = -3

Ay = \left[\begin{array}{ccc}2&4&3\\5&5&5\\3&5&6\end{array}\right] =-20\\

Az = \left[\begin{array}{ccc}2&2&4\\5&3&5\\3&4&5\end{array}\right] = 14

∴ x = Ax/A = -3/-1 = 3

   y = Ay/A = -20/-1 = 20

   z = Az/A = 14/-1 = -14

<u>So, the answer is option b. (x = 3, y = 20, z = -14)</u>

4 0
3 years ago
Other questions:
  • While shopping, Cori spent three times as much as Ann. If they spent a total of $124, how much did each person spend?
    5·1 answer
  • The annual rainfall (in inches) in a certain region is normally distributed with mean 43.2 and variance 20.8. Assume rainfall in
    8·2 answers
  • 1,114,040 in word form
    9·1 answer
  • An Isosceles triangle, with the base 48 cm, height 32 cm.
    11·2 answers
  • If 80 is divided by the sum of 4 and a certain number , the result is 16 .find the number
    9·1 answer
  • What is the answer of 2/3-6/10
    15·2 answers
  • 25 POINTS!! State the minimum monthly income and hourly wage per worker needed to cover monthly expenses for the family you used
    13·1 answer
  • Kl =4x+3 jk =4x+2 and jl =45 find kl
    9·1 answer
  • Please help:)) will give brainliest:)
    15·1 answer
  • I forgot what the definition of y-axis and x-axis was
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!