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
shusha [124]
2 years ago
14

What is the radius of a circle with an area of 212 in squared. please please simplify for me....​

Mathematics
1 answer:
Nikitich [7]2 years ago
5 0

Answer:

8.22in

Step-by-step explanation:

Area of circle = πr²

r is the radius

Given

Area = 212in²

Substitute

212 = πr²

r² = 212/3.14

r² = 67.52

r = √67.52

r = 8.22in

hence the radius of the circle is 8.22in

You might be interested in
7. When dy/dx = (x -6)1/2, what does y equal?
Sergio039 [100]
The answer is below
\frac{dy}{dx} = \frac{1}{2} (x - 6)
multiply both sides by dx

dy = \frac{1}{2} (x - 6)dx
integrate both sides of the diffrential

integral \: dy = integral \: \frac{1}{2} (x - 6)dx
simplify and integrate to get y alone don't forget to tack on c with your indefinite integral

y = \frac{x {}^{2} }{4} - 3x + c
3 0
3 years ago
Which values are solutions to the inequality below ×<9​
iragen [17]

Answer: theres not a picture soo idk

Step-by-step explanation:

5 0
4 years ago
What two numbers add to 13 but multiply to negative 12?
Phoenix [80]

9514 1404 393

Answer:

  13.8654599313 and -0.8654599313

Step-by-step explanation:

If one of the numbers is x, then the other is 13-x, and their product is ...

  x(13 -x) = -12

  x^2 -13x = 12 . . . . multiply by -1 and simplify

  x^2 -13x +6.5^2 = 12 +6.5^2 . . . . complete the square

  (x -6.5)^2 = 54.25

  x -6.5 = √54.25

  x = 6.5 +√54.25 ≈ 13.8654599313

and the other number is ...

  13 -x = 13 -13.8654599313 = -0.8654599313

The two numbers are 13.8654599313 and -0.8654599313.

3 0
3 years ago
" A projectile is launched in the air according to the equation h(t)= -16t^2 + 125t + 5. At what time does the projectile land?"
Vlad1618 [11]
"according to the equation is a sloppy description, and announces that whoever said it or wrote it doesn't really have a clue to what the equation means or what it's good for.

h (t) is the HEIGHT of the projectile above the ground at any time 't'. When the projectile hits the ground, h (t) is zero. Write that ! Then you have a quadratic equation that you can easily solve for 't'.
8 0
3 years ago
5% sales tax on a $81.08 bookcase
mafiozo [28]
81.08 * .05 = 4.054
$4.05
3 0
3 years ago
Other questions:
  • 0+x=x name the property of the equation
    11·1 answer
  • (Day 8) Find the value of each variable. The dot represents
    7·1 answer
  • How many solutions does this equation have? x+4-6x=6-5x-2
    14·1 answer
  • Just need to calculate the area of the shaded region, thanks
    5·1 answer
  • Please help. it’s really important!
    14·1 answer
  • In the figure, Line a is parallel to line b. Name the angles congruent to angle 3.
    15·1 answer
  • What is the diameter of a circle with a circumference of 84.78 inches? use 3.14
    14·1 answer
  • Find another way to name the plane M shown in the figure
    5·2 answers
  • Match the name of the individual to a description of his
    13·1 answer
  • A rectangular bathroom mirror is 4
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!