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
lana [24]
3 years ago
10

Help me plsssssssssssss

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

The radius is 5 cm

Step-by-step explanation:

The formula for the area of a circle is :  \p*radius^2

To work out the length of the radius you would first need to divide the area of  78.5 cm by pi (pi=3.14), this gives you 25cm^2\\. This is because by dividing the area by pi we are isolating the value of the radius squared.

The final step is to work out the radius. You can do this by finding the square root of the radius squared which is 25, this gives you 5 cm. This means that the radius is 5 cm. This is because the square root is a number that when squared equals that number.

1) Divide 78.5 by pi.

78.5/\pi=25cm^2

2) Find the square root of 25 cm squared.

\sqrt{25} =5 cm

In this question pi is 3.14

You might be interested in
Ralph paid 660 for a camera at a 60% off sale. What was the original price of the camera?
NNADVOKAT [17]
60% divided by 6 = 10%
660 divided by 6 =110
10% x 10 = 100%
110 x 10 = 1100
7 0
3 years ago
Can a Right Triangle be a(n)<br> A.Obtuse<br> B.Scalene
Blizzard [7]
Your answer is B hope i helped
4 0
3 years ago
Read 2 more answers
The temperature was -5 f and then fell 8 f
Aleksandr [31]

Answer:

-13

Step-by-step explanation:

if you're asking what the new temperature would be.

then -5 -8=-13

3 0
3 years ago
Which expressions are equivalent to (4⋅a)⋅2 ?
anastassius [24]
<span>(4⋅a)⋅2
= 8a

hope it helps</span>
7 0
3 years ago
2)<br> d-e- and p = Evaluate<br> (2e - d)<br> 2f<br> A)<br> 24<br> B)<br> 1<br> D)
MariettaO [177]

Answer:

i dont no

Step-by-step explanation:

you may solve by u

5 0
2 years ago
Other questions:
  • A deli charges the same price, $5.40, for all of its different sandwiches. If a company ordered n sandwiches for a luncheon, whi
    11·1 answer
  • Matt and Tikka thought of the same number. Matt added 7 to that number and then doubled the result. He got 26. Tikka did the sam
    11·1 answer
  • 30 points! Find the four arithmetic means between -17 and 32.
    15·1 answer
  • Find x if  m&lt;SGH = 160o, m&lt;FGH = 46x - 4, and m&lt;FGS = 6x - 4 Please help me with this math problem
    13·1 answer
  • What is the zero for 2x2-7=4
    10·2 answers
  • Simplify the radical expression square root of x^8y^18
    10·1 answer
  • Which list orders from least to greatest?
    9·1 answer
  • 1+1+2+8+10-36-36%12845+86%29?​
    8·2 answers
  • Help answer key is on the bottom
    15·2 answers
  • Write an equation of the line that passes through (18, 2) and is parallel to the line 3y−x=−12
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!