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
matrenka [14]
3 years ago
14

If the circumference is 31.4, what are the radius and the area?

Mathematics
1 answer:
jekas [21]3 years ago
7 0

Answer:

radius = 5 units

area of a circle = 15.7units²

Step-by-step explanation:

given that the circumference of a circle = 31.4

radius = ?

recall that the formulae for finding the circumference of a circle  =  2πr

circumference of a circle  = 2 x 3.14 x r

31. 4 = 6.28r

divide both sides by the coefficient of r which is 6.28

31.4/6.28 = 6.28r/6.28

5 = r

radius = 5 units

therefore the radius of the circle whose circumference is 31.4 units is evaluated to be 5units

to find the area of the circle

recall the formula = πr²

area of a circle = 3.14 x 5²

area of a circle = 3.14 x 25

area of a circle = 15.7units²

You might be interested in
Right trapezoid WXYZ is shown. Right trapezoid W X Y Z is shown. Sides X Y and W Z are parallel. Angle W is 73 degrees and angle
Sladkaya [172]

Answer:

∠WXY = 107°

Step-by-step explanation:

In a trapezoid, adjacent angles are supplementary, meaning they add up to 180°. ∠W and ∠WXY are adjacent, so they are supplementary. 180° - 73° = 107°.

Another way to do this is to know that there are 360° in a trapezoid. This is a right trapezoid, so two of the angles are 90°. One angle is 73°. 90° + 90° + 73° = 253°. 360° - 253° = 107°.

I hope this helps :))

3 0
3 years ago
On a coordinate plane, how are the locations of the points (1 , -5) and (-1 , 5) related
KengaRu [80]

Answer:

They are a transformation

Step-by-step explanation:

Checked using desmos graphing

8 0
3 years ago
Which table represents a linear function? (will give brainliest)
kvasek [131]

Answer:

\huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{:}\

<em><u>Linear function :</u></em>The characteristic property of linear functions is that when the input variable is changed, the change in the output is proportional to the change in the input. Linear functions are related to linear equations.

Step-by-step explanation:

We have

y=mx+c

for 1st

not satisfied.

for

2nd

not satisfied

<em><u>3rd</u></em>

<em><u>3rd satisfied</u></em>

4th

[note : substitute value of x to get value of y from table]

so

<u>t</u><u>h</u><u>i</u><u>r</u><u>d</u><u> </u><u>table represents a linear function.</u>

3 0
3 years ago
Read 2 more answers
find the slope-intercept form of the line whose slope os 4 and that passes through the point (-9,12)​
Trava [24]

Answer:

y = 4x+48

Step-by-step explanation:

Slope intercept form is y=mx+b. We already know the value for m(4), so we can plug in the x and y coordinates for x and y in the equation. This gives us 12=4(-9)+b. Solve for b to get 48

7 0
3 years ago
What shape are the sides of a rectangular pyramid?
Snowcat [4.5K]

Answer: Its a angle ...

Step-by-step explanation: Hope its fine.

5 0
3 years ago
Other questions:
  • Cole had 3/4 of an hour of free time before dinner he spent 2/3 of that time playing the guitar how long did he play the guitar
    11·2 answers
  • What is the answer to -2x + 4/3 = 8/3
    9·2 answers
  • An airplane changes in altitude before landing is shown.what equation represents this change in altitude
    10·1 answer
  • True or false? A corollary is a statement that can be proved using a theorem, but the proof is usually difficult.
    10·2 answers
  • Find the area of the
    5·1 answer
  • The list of ordered pairs below represents a function
    6·1 answer
  • Simplify y 2 + 11y - 6y + y 2​
    11·1 answer
  • Does anyone know the answer for this?​
    10·1 answer
  • NEED HELP ASAP! WILL CRY OR SOMETHING
    6·1 answer
  • DOES ANYONE KNOW ANY OF THIS PLZZZ!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!