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
romanna [79]
2 years ago
7

At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 history instructors, and 4 english instru

ctors. If an instructor is selected, find the probability of getting a computer science instructor or a mathematics instructor
Mathematics
1 answer:
kodGreya [7K]2 years ago
3 0

Answer:

12/19.

Step-by-step explanation:

There are 19 instructors altogether.

Probability (getting a computer science instructor) =  5/19.

Probability (getting a mathematics instructor) =  7/19.

As this  a 'compounded or'  probability  these values are added so the answer is 5/19 + 7/19

= 12/19.

You might be interested in
What is the largest digit N for which 2345N is divisible by 6?
kotegsom [21]
Consider this option (this is not the only way):
1. according to the condition 2345N is divisible by <em>6</em>, it means, that N is even number (0;2;4;6 or 8).
2. <em>6</em>=3*2, then the number 2345N is divisible by 3 also. It means, that the number (2+3+4+5+N)=(14+N) is divisible by 3, where N={0|2|4|6|8}.
3. using items 1 and 2:
(14+4)=18; only 18 is divided by 3, it means that N=4.

answer: 4.

Note also, that only 23451; 23454 and 23457 are divided by 3. Only 2345<u>4</u> is divided by 6 (2345<u>4</u>/6=3909).
3 0
3 years ago
cConsider a game in which players roll a number cube to determine the number of points earned. If a player rolls a prime number,
quester [9]
Expected value = -1(1/6) + 2(1/6) + 3(1/6) - 4(1/6) + 5(1/6) - 6(1/6) = -1/6 + 2/6 + 3/6 - 4/6 + 5/6 - 6/6 = -1/6 = -0.167
4 0
3 years ago
Read 2 more answers
Find the m&lt;bac, if m&lt;dec= 58 and m&lt;edc =43<br>a. 43<br>b. 58<br>c. 79<br>d. 101
mamaluj [8]
We are looking to figure out the size of m<CAB
Since line AB is parallel to the line CD, m<CAB corresponds to m<ECD which means the size of the angles equals
m<ECD can be found by using the fact that angles in a triangle add up to 180°,
hence, 180°-58°-43°=79°

The size of m<CAB is 79°

5 0
3 years ago
Read 2 more answers
The axis of symmetry for the graph of the function f(x) = 3x2 + bx + 4 is x = 3/2 . What is the value of b?
kvasek [131]
The axis of symmety is the x value of the vertex

to find the x value of the vertex of ax^2+bx+c=0
x value=-b/2a

3x^2+bx+4=0
3/2=vertex

-b/2(3)=3/2
-b/6=3/2
times 6
-b=18/2
-b=9
times -1
b=-9
6 0
3 years ago
Read 2 more answers
4) Astronomers have notice that the number of visible sunspots varies from a
Alex

Answer:

Choice D is correct

Step-by-step explanation:

trust me, brainliest pls?

6 0
3 years ago
Other questions:
  • An example of an asset with high liquidity is
    8·1 answer
  • I need help pleaseee
    10·1 answer
  • Subtract. <br> –84 – 55<br> a. –29<br> b. –139<br> c. 29<br> d. 139
    12·1 answer
  • In the lab, Alonzo has two solutions that contain alcohol and is mixing them with each other. Solution A is 6% alcohol and Solut
    14·2 answers
  • On the graph below you will find two different triangles, and three points identified along the line.
    11·1 answer
  • A rope factory produces ropes that have been measured to be able to lift 500 pounds, with a standard deviation of 6 pounds. One
    9·2 answers
  • Mark each situation as an example of experimental or theoretical probability.
    12·1 answer
  • Simplify:<br> x2 +5x-14<br> x2+10x+21
    11·1 answer
  • PLS PLS PLS HELP I DONT UNDERSTAND THIS AT ALL!!!!!!!! I WILL MARK BRAINLIEST!!!!
    10·2 answers
  • The lowest point in the United States is the Sierra Nevada in California. Its altitude is 300 feet below the sea level. Identify
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!