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
pantera1 [17]
3 years ago
5

Mai ran 1/4 of the length of her road, which is 9 miles long. How long did Mai run?

Mathematics
1 answer:
mezya [45]3 years ago
7 0

Answer:2.25

Step-by-step explanation:

You might be interested in
Check whether the relation R on the set S = {1, 2, 3} is an equivalent
kozerog [31]

Answer:

R isn't an equivalence relation. It is reflexive but neither symmetric nor transitive.

Step-by-step explanation:

Let S denote a set of elements. S \times S would denote the set of all ordered pairs of elements of S\!.

For example, with S = \lbrace 1,\, 2,\, 3 \rbrace, (3,\, 2) and (2,\, 3) are both members of S \times S. However, (3,\, 2) \ne (2,\, 3) because the pairs are ordered.

A relation R on S\! is a subset of S \times S. For any two elementsa,\, b \in S, a \sim b if and only if the ordered pair (a,\, b) is in R\!.

 

A relation R on set S is an equivalence relation if it satisfies the following:

  • Reflexivity: for any a \in S, the relation R needs to ensure that a \sim a (that is: (a,\, a) \in R.)
  • Symmetry: for any a,\, b \in S, a \sim b if and only if b \sim a. In other words, either both (a,\, b) and (b,\, a) are in R, or neither is in R\!.
  • Transitivity: for any a,\, b,\, c \in S, if a \sim b and b \sim c, then a \sim c. In other words, if (a,\, b) and (b,\, c) are both in R, then (a,\, c) also needs to be in R\!.

The relation R (on S = \lbrace 1,\, 2,\, 3 \rbrace) in this question is indeed reflexive. (1,\, 1), (2,\, 2), and (3,\, 3) (one pair for each element of S) are all elements of R\!.

R isn't symmetric. (2,\, 3) \in R but (3,\, 2) \not \in R (the pairs in \! R are all ordered.) In other words, 3 isn't equivalent to 2 under R\! even though 2 \sim 3.

Neither is R transitive. (3,\, 1) \in R and (1,\, 2) \in R. However, (3,\, 2) \not \in R. In other words, under relation R\!, 3 \sim 1 and 1 \sim 2 does not imply 3 \sim 2.

3 0
3 years ago
WhAt is 16x65+78-45-4+100-99+77
Mariana [72]
1,147................
4 0
3 years ago
Read 2 more answers
Find the slopes of the line represented by each table of values
irga5000 [103]
Find two pefect lines that touches the middle then do rise over run and that will be your slope
3 0
3 years ago
Read 2 more answers
What is the value of x?<br><br> sin49° = cosx<br><br> Enter your answer in the box.<br><br> x = ? °
Anni [7]

Answer:

x = 41^{\circ}

Step-by-step explanation:

\sin(49^{\circ}) = \cos(90^\circ -49^\circ) = \cos (41^\circ)

3 0
2 years ago
Explain why the mean without the outliner could be a better description of the data set than the mean with the outliner.
lions [1.4K]
Sometimes the outlier, if it's too large, can throw off the mean, making it larger and smaller, so it isn't as accurate

sorry if this doesnt make sense if you need me to explain it more I will
5 0
3 years ago
Read 2 more answers
Other questions:
  • A bookstore can purchase several calculators for a total cost of $120. If each calculators cost $1 less, the bookstore could pur
    7·1 answer
  • The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
    11·2 answers
  • What is the percent of change from 4,000 to 600?<br> work too plz
    8·1 answer
  • Cathy bought 7 pizzas that contained 8 slices of pizza. She wanted to split the pizza equally among 14 of her friends. How many
    9·1 answer
  • The dot plots below show the weights of the players of two teams: Based on visual inspection of the dot plots, which team appear
    5·2 answers
  • The percent of working students increased 12.2% to 32.9%, what was the percent prior to the increase?
    5·1 answer
  • Extending Patterns What is the value of y when x = 0? When x = 0, y = . <br> HURRY PLS
    12·2 answers
  • 4. State the range of the cubic function:<br> f(x)= 1/2 (x +4)^3
    7·1 answer
  • Graph the line <br> y+5=1/4(x-3)
    8·1 answer
  • Help!! Solve for X round to the nearest 10th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!