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
Mnenie [13.5K]
3 years ago
10

"On the Richter scale, the magnitude R of an earthquake can be measured by the intensity formula

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

  B)  The earthquake measuring 4.5 on the Richter scale is about 32 times more intense than an earthquake measuring 3.

Step-by-step explanation:

Let Ra = log(Ia/Io), and Rb = log(Ib/Io). Then for ...

  Ra - Rb = 4.5 -3.0 = 1.5

  log(Ia/Io) -log(Ib/Io) = 1.5 . . . . . . . . . . . substitute the given expressions

  (log(Ia) -log(Io)) -(log(Ib) -log(Io)) = 1.5 . . . expand the logs

  log(Ia) -log(Ib) = 1.5 . . . . simplify

  log(Ia/Ib) = 1.5 . . . . . . . . write as a single log

  Ia/Ib = 10^1.5 ≈ 32 . . . . take the antilog

The ratio of intensities is about 32, corresponding to choice B.

You might be interested in
Robert takes 10 days more than Peter to complete a job. If they work together they will
melamori03 [73]

Answer:

I believe the answer is 2

Step-by-step explanation:

5 0
3 years ago
Delaney bought a new car for $34,742 she was surprised that the dealer then added 1,945.55. what was the sales tax rate for this
Gemiola [76]

Answer:

5.6%

Step-by-step explanation:

$34,742. X 5.6% = $1,945.55

6 0
3 years ago
WILL GIVE BRAINLY NEED HELP BAD PLZ WUICK <br> What is the perimeter of the triangle?<br> units
AysviL [449]

Answer:

26units!

Step-by-step explanation:

4 0
3 years ago
3x + 12+ 9x - 72<br><br><br>Solve?​
Reil [10]

Answer:

12x - 60

Step-by-step explanation:

3x+12+9x-72\\=3x+9x+12-72\\=12x+12-72\\=12x-60

5 0
2 years ago
Help ill give brainlest pls
N76 [4]

Answer:

Step-by-step explanation:

B is the answer pretty sure

8 0
2 years ago
Read 2 more answers
Other questions:
  • To make a batch of
    15·1 answer
  • Which Values of P and Q result in an equation with exactly one solution?
    15·2 answers
  • Linda is going for a walk. she takes 3 hours to walk 4.8 miles. what is her speed?
    13·1 answer
  • Two lines intersect at a point, forming ​ ∠1 , ∠2 , ∠3 , and​ ​ ∠4 ​ .
    13·1 answer
  • Please answer correctly, show all steps you did to solve this problem, and i will mark brainliest to best answer
    14·1 answer
  • HELP PLEASE THIS IS MY LAST QUESTION OF THIS TEST AND I LITERALLY DONT KNOW WHAT TO DOOO!
    12·1 answer
  • Given y²+5y-6= (y+p) (y+q), find the values of p and q. ​
    14·2 answers
  • Pleasee help!!! I'm very confused
    6·1 answer
  • 10. +
    13·1 answer
  • Whats 395585404044844 times 2929292929282029 plus 92929292101020129 divided by 3383838383883
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!