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
ivolga24 [154]
3 years ago
7

Verify that (a+b)+c = a+ (b+c) by taking a = -8 , b = (-8/11) , c = (-8/12)

Mathematics
2 answers:
gogolik [260]3 years ago
6 0

Answer:

Step-by-step explanation:

(-8+-\frac{8}{11} ) + (-\frac{8}{12}) = -\frac{96}{11} + (-\frac{2}{3}) = -\frac{288 + 22}{33}) = -\frac{310}{33}\\ (-8) + (-\frac{8}{11} + (-\frac{2}{3})) = (-8) + (-\frac{46}{33})= -\frac{310}{33}

Levart [38]3 years ago
3 0

Answer:

The expression is true

Step-by-step explanation:

The expression (a+b)+c = a+ (b+c) is an associative law. Given a = -8 , b = (-8/11) , c = (-8/12), we need to verify that the expression is true. To do that we need to substitute the values given into the right hand side and the also left hand side of the expression and the values gotten for both sides must be equal.

Given the left hand side to be (a+b)+c, substituting the values of a,b and c into the expression, we have:

{-8+(-8/11)}+(-8/12)

= (-8-(8/11))-8/12

= (-88-8)/11-8/12

= -96/11-8/12

= (-1152-88)/132

= -1240/132

= -620/-66

= -310/33

Similarly for the right hand side of the expression a+(b+c)

= -8+(-8/11+(-8/12))

= -8+(-8/11-8/12)

= -8+{(-96-88)/132}

= -8+(-184/132)

= (-1056-184)/132

= -1240/132

= -310/33

Since both expression are equal to -310/33, then the associative law given above is true.

You might be interested in
Please help solve ASAP!! <3
kodGreya [7K]

Answer: The answer is 280 ft.

Step-by-step explanation:

divide the green area into a triangle and a rectangle so it's easier to calculate. Then find the area of the rectangle by multiplying 14 times 16. That should get you 224. Then, find the area of the tringle by multiplying 14 times 18, times 1/2. That will get you 56. If you add 56 to 224, that gets you 280.

6 0
3 years ago
You are choosing a song for your dance recital. Song A has 11 beats in 10 seconds. Song B has 7 beats in 6 seconds. Which song h
shusha [124]
Song B
7/6 is greater than 11/10
3 0
3 years ago
Which pair of triangles is similar?
irina [24]
I believe the answer is the fourth option....because 13 × 3 is 39 5 × 3 is 15 and 12 × 3 is 36
6 0
3 years ago
Read 2 more answers
Y varies directly as x. Y=28 when x=2. Find y when x=12
Tatiana [17]

Answer:

Y=168

Step-by-step explanation:

Y varies directly as X

Y=kx

K is a constant

28=k2

K=28/2 =14

Y=14x

Y=14×12

Y=168

4 0
3 years ago
IM AWARDING POINTS AND BRAINLIEST ITS DUE ASAP
Lelechka [254]

Answer:

the answer would be c=81x^28-n I hope it helps!

4 0
2 years ago
Read 2 more answers
Other questions:
  • 1/3(z+4)-6=2/3(5-z)​
    9·2 answers
  • The lengths of trout in a lake are normally distributed with a mean of 30 inches and a standard deviation of 4.5 inches. Enter t
    9·2 answers
  • What is the volume of a sphere with a radius of 4
    7·1 answer
  • Whole numbers greater than 6 but less than 16
    7·2 answers
  • What is the proportional relationship with the table?
    9·1 answer
  • What is the sum of 3/8 and 1/16
    11·2 answers
  • What is the measure of EDH?<br> 10°<br> 40°<br> O 50°<br> 90°
    8·1 answer
  • A box of cereal is shaped like a rectangular prism. The box is 20 centimeters long and 30 centimeters high. It's volume is 3600
    9·2 answers
  • Find the perimeter of the shaded region. Keep answer in exact form. rectangle with two semi circles within it. Semi circle have
    11·1 answer
  • A clothing store charges a 10% tax on each purchase. If a shopper’s total before tax is $63, how much is the tax? Explain how yo
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!