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
stich3 [128]
3 years ago
11

Mention the commutativity associative and distributive properties of rational number

Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

Associative property: a + (b + c), a – (b – c) ≠ (a – b) – c, a × (b × c) = (a × b) × c, and a ÷ (b ÷ c) ≠ (a ÷ b) ÷ c

When a = ½ and b = ¾

Now, for checking a × b = b × a, consider LHS and RHS.

LHS = a × b = ½ × ¾ = ⅜

RHS = b × a = ¾ × ½ = ⅜

Thus, LHS = RHS (Hence proved)

Step-by-step explanation:

You might be interested in
Melissa has reached her credit card limit of $6,500. Since Melissa has poor credit history, the annual interest rate on her cred
GrogVix [38]
You my 220+235 and then you get the Nader
4 0
2 years ago
Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location. If Har
AlexFokin [52]

Answer:

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:

<u> (50)(36)=1800in</u>

2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:

<u> (1800)(3in)/24in=158.82</u>

3. If you can to express it in yards:

<u> 158.82/36=4.41yd</u>

<h2><u>Therefore, the answer is: 158.82 inches or 4.41 yards.</u></h2>
4 0
2 years ago
Evaluate using inverse operations...<br><br> 9x + 8 = 27
melomori [17]

Answer:

9x+8=27

9x=27_8

9x=19

9 9

x=2.111111111111

5 0
2 years ago
Read 2 more answers
Suppose in this semester, our Exam 1 average was about 86 with an SD of about 10. Suppose the correlation between our Exam 1 and
Oduvanchick [21]

Answer:

the slope of the regression equation for predicting our Exam 2 scores from Exam 1 scores is 0.492

And the y-intercept of the regression equation for predicting our Exam 2 scores from Exam 1 is 33.688

Step-by-step explanation:

Given the data in the question;  

mean X" = 86

SD σx = 10

Y" = 76

SD σy = 8.2

r = 0.6

Here, Exam 2 is dependent and Exam 1 is independent.

The Regression equation is

y - Y" = r × σy/σx  ( x - x" )

we substitute

y - 76 = 0.6 × 8.2/10  ( x - 86 )

y  - 76 = 0.492( x - 86 )

y  - 76 = 0.492x - 42.312

y = 0.492x - 42.312 + 76

y = 0.492x + 33.688

Hence, the slope of the regression equation for predicting our Exam 2 scores from Exam 1 scores is 0.492

And the y-intercept of the regression equation for predicting our Exam 2 scores from Exam 1 is 33.688

4 0
3 years ago
On his way to and home from work, John can ride his bike at a constant speed of 16 mph. If he lives 60 miles away from work, how
melamori03 [73]

Answer:

7.5 hours

Step-by-step explanation:

16 mph = 16 miles per hour

how much time does he spend commuting to, and returning from, work each day = 60(2) = 120 miles

120/16

= 7.5 hrs

8 0
2 years ago
Other questions:
  • suppose the linear regression line y= 2.4x + 3.1 predicts the time,in minutes it takes you to be served at a food stand if there
    13·2 answers
  • A total of 800 pre-sale tickets and tickets at the gate were sold to football city championship game. If the number of tickets s
    11·1 answer
  • How did i work this out?
    8·1 answer
  • One more than 8 times a number is the same as 12 times the number
    5·1 answer
  • A home has a triangular backyard. The second angle is 4degrees more than the first angle. The third angle is 20 degrees more tha
    5·1 answer
  • Lois and Clark own a company that sells wagons. The amount they pay each of their sales employees (in dollars) is given by the e
    10·1 answer
  • Select the correct answer.
    12·2 answers
  • Please help me!! due tonight!
    13·1 answer
  • Please help I will give points
    10·1 answer
  • Jill took a total of 6 quizzes over the course of 3 weeks. After attending 7 weeks of school this quarter, how many quizzes will
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!