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
kolezko [41]
3 years ago
13

Consider the 20 points of a 4×5 grid. You randomly choose two points from the 20 points. What is the probability that the two po

ints belong to a horizontal or vertical line?
Mathematics
1 answer:
Serhud [2]3 years ago
6 0

Answer:

The probability of both points falling in the same row or column is 7/19, or approximately 37%

Step-by-step explanation:

The easiest way to solve this is to think of it rephrased as "what is the probability that your second point will be in the same row or column as your first point".  With that frame of reference, you can simply consider how many other points are left that do or do not fall in line with the selected one.

After selecting one, there are 19 points left.

The row that the first one falls in will have 3 remaining empty points.

The column will have 4 remaining empty points.

Add those up and you have 7 possible points that meet the conditions being checked.

So the probability of both points falling in the same row or column is 7/19, or approximately 37%

You might be interested in
Coach Kelly documented the number of points the Ragin' Cajun football team scored each game this season. The following histogram
d1i1m1o1n [39]

Answer:

5/16

Step-by-step explanation:

urwelcome

7 0
4 years ago
Read 2 more answers
What is the slope intercept form of the equation for the line that has a slope of -2 and a y-intercept of 3?
Misha Larkins [42]

Answer:

y = - 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - 2 and c = 3, hence

y = - 2x + 3 ← equation in slope- intercept form

7 0
3 years ago
Hisham is saving to buy a video game system. every month he spends $30 of what he earns. after four months, he has saved $300. h
marta [7]
I think its $75 per month cause 300÷4 equals 75
4 0
4 years ago
What property is occurring in the following example? 11.5 + (- 11.5) = 0
kramer

Answer: A property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.

Step-by-step explanation:

A property where sum of any number and its inverse is equal to zero is called additive inverse property.

For example, 11.5 + (-11.5) = 0

Here, 11.5 is the number and its inverse is (-11.5). The sum of both these is equal to zero. Hence, it shows a property of additive inverse.

Thus, we can conclude that property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.

5 0
3 years ago
The graph shows one of the linear equations for a system of equations. Which equation represents the second linear equation for
bagirrra123 [75]
I think the answer is c
3 0
4 years ago
Other questions:
  • In following diagram BC is parallel to DE
    15·1 answer
  • The sum of 2 consecutive odd integers is 52. If x represents the smaller integer, then the larger integer is
    15·2 answers
  • Does this table represent a function? Why or why not?
    7·2 answers
  • Consider the functions f(x) = 3x2, g(x)=1/3x , and h(x) = 3x. Which statements accurately compare the domain and range of the fu
    11·2 answers
  • Is 1.904 greater than 19.03?
    10·1 answer
  • Pls pls someone answer thissss asap...also I’d like the steps on how to do it as well pls and ty!!!
    14·1 answer
  • The figure to the right shows two parallel lines intersected by a transversal.
    14·1 answer
  • Write the equation of a line that is parallel to y= -7x+5 and passes through the point (0,6)
    5·1 answer
  • You want to rent a television Company A charges $50 per week plus a one-time fee of $15. Company B charges 130 per week plus a o
    10·1 answer
  • Need help ASAP pleaseee
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!