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
AleksandrR [38]
3 years ago
15

The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

Mathematics
1 answer:
Tom [10]3 years ago
5 0

Answer:

r = 5 cm

Step-by-step explanation:

A = πr²

78.53 = (3.14)r²

divide by 3.14

25 = r²

r = ±5

r = 5

You might be interested in
which is not a result of multiplying the height of a rectangular prism by a scale factor of 1/2 and I need work to
chubhunter [2.5K]
C is the answer


for example

assume that the height of a rectangular prism is 2, width is 1 and length measures 3

the volume will be 6
(2*1*3)

if we multiply height with the scale factor of 1/2
it becomes 1

so the volume will be 3
(1*1*3)

this situation goes for other examples, too


good luck
5 0
3 years ago
Find the total surface area of this cuboid.​
AnnyKZ [126]

Answer:

use the formula

Step-by-step explanation:

its 2lw+2lh+2hw

h=5

w=4

l=6

4 0
3 years ago
Read 2 more answers
What's the angle of y and x ??
victus00 [196]
Y is going to be the number 40
x will equal 90
6 0
3 years ago
³√125×2³ is? please help no idea​
atroni [7]
The answer is 40

³√125=5
2^3= 8
5x8= 40
5 0
3 years ago
Read 2 more answers
I NEED HELP ASAP WILL GIVE BRAINLYEST
kodGreya [7K]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • 38b/-19<br><br> please help me
    9·1 answer
  • The data in the table below for my function. What values in the table would change the relation to NOT be a function?
    13·1 answer
  • Find the discounted price of each item.<br><br><br> prescription glasses: $149<br> discount: 20%
    11·2 answers
  • Find the product.<br><br> (-2x ^2)^3 ·3x
    8·1 answer
  • a las 6 am un termometro marca 6°c bajo cero, a las 9 am la temperatura aumento a 4°c, a las 12 pm la temperatura subio 10°c, a
    9·1 answer
  • brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
    14·1 answer
  • On a map the scale is 1 inch = 125 miles. What is the actual distance between two cities of the map distance is 4 inches. ( PLS
    11·1 answer
  • $90 is what percent of $100?<br><br> I need help.
    9·1 answer
  • Explain what the inequality --4h &lt;-14 represents.<br> What value of h makes the equation true
    8·1 answer
  • Please answer question
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!