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
Umnica [9.8K]
1 year ago
14

Earthquakes are measured by the Richter scale and demonstrated by the formula R = log(A) where A measures the amplitude of the e

arthquake wave and A, is the amplitude of the smallest detectable wave (or standard wave). An earthquake is measured with a wave amplitude 1800 times as great as a standard wave. What is the magnitude of this earthquake using the Richter scale? Round to the nearest tenth.​
Mathematics
1 answer:
Airida [17]1 year ago
3 0

Answer:

3.22

Step-by-step explanation:

log(18×100)

log18+log100

1.22+2

3.22

You might be interested in
Which quotient matches the description of solving with partial quotients for 240÷15
Illusion [34]

Answer:

C. 16

Step-by-step explanation:

240/15

Step one: 10x15= 150

              240-150= 90  

Partial quotient: 10

Step two: 6x15= 90

                 90-90= 0

Partial quotient: 6

Step 3: 10+6= 16

Answer check: 240/15= 16

3 0
2 years ago
What is the nth term rule of the linear sequence <br> 6,13,20,27,34?
Law Incorporation [45]

Answer:

62

Step-by-step explanation:

5 0
2 years ago
Which undefined term is used to define an angle ?
enyata [817]

Point.

<h3>Further explanation</h3>
  • This is one of the classic problems of Euclidean geometry.
  • The angle is determined by three points, we call it A, B, C, with A ≠ C and B ≠ C.  
  • We express an angle with three points and a symbol ∠. The middle point represents constantly vertex. We can, besides, give angle names only with vertices. For example, based on the accompanying image, the angle can be symbolized as ∠BAC, or ∠CAB, or ∠A.  

Types of Angles  

  • The acute angle represents an angle whose measure is greater than 0° and less than 90°.
  • The right angle is an angle that measures 90° precisely.  
  • The obtuse angle represents an angle whose measures greater than 90° and less than 180°.  
  • The straight angle is a line that goes infinitely in both directions and measures 180°. Carefully differentiate from rays that only runs in one direction.

<u>Note:</u>

Undefined terms are the basic figure that is undefined in terms of other figures. The undefined terms (or primitive terms) in geometry are a point, line, and plane.

These key terms cannot be mathematically defined using other known words.

  • A point represents a location and has no dimension (size). It is marked with a capital letter and a dot.
  • A line represent an infinite number of points extending in opposite directions that have only one dimension. It has one dimension. It is a straight path and no thickness.
  • A plane represents a planar surface that contains many points and lines. A plane extends infinitely in all four directions. It is two-dimensional. Three noncollinear points determine a plane, as there is exactly one plane that can go through these points.  
<h3>Learn more   </h3>
  1. Undefined terms are implemented to define a ray brainly.com/question/1087090
  2. Definition of the line segment brainly.com/question/909890  
  3. What are three collinear points on a line? brainly.com/question/5795008  

Keywords: the definition of an angle, the undefined term, line, point, line, plane, ray, endpoint, acute, obtuse, right, straight, Euclidean geometry

6 0
3 years ago
Read 2 more answers
Which number below best represents a positive charge of 1,861?
scoray [572]
The second one is the only positive besides 4th but the second and first are the only 1861  so ide have to say the second one

5 0
3 years ago
What is the value of x?
Hitman42 [59]

Answer:

Step-by-step explanation:

Since RQT=155

4x-20+3x+14=155

7x-6=155

7x=161

x=23

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x <br> - 4x + 5 = -2x-1
    6·2 answers
  • The Ecology Club is electing officers for the new school year. The club will elect a president, vice-president, secretary and tr
    10·1 answer
  • Which ratio is equivalent to 5:4 ?
    9·1 answer
  • How many blocks 1 inch on each edge would it take to fill a shoe box that is 12 inches long, 6 inches wide, and 5 inches tall?
    6·2 answers
  • What is 300% of 12???
    9·2 answers
  • What percent of 7085 is 375?
    13·1 answer
  • The reduced row echelon form of a system of linear equations is given. Write the system of equations corresponding to the given
    14·1 answer
  • Which table represents a proportional relationship that has a constant of proportionality equal to 0.8?
    9·1 answer
  • What is 67 sec and 76 minuts equal to
    13·2 answers
  • If x= 3-2^2 then find the value of x^2+1÷x^2​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!