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
vodka [1.7K]
3 years ago
15

Which expression illustrates the associative property of addition?

Mathematics
2 answers:
Alenkasestr [34]3 years ago
5 0

Answer:

C:(3+9)-12=3+(19-12)

Step-by-step explanation:

We are given that some options

We have to find that which expression illustrate the associative property of addition

Associative property of addition:

Let a, b and c are integers then

(a+b)+c=a+(b+c)

a=3 ,b=19,c=-12

(3+19)-12=3+(19+(-12))

(3+9)-12=3+(19-12)

Hence, option C is true.

4vir4ik [10]3 years ago
3 0

Answer: THIRD OPTION.

Step-by-step explanation:

The Associative property of addition states that when three or more numbers are added, it does not matter how they are grouped, the sum is the same. Then:

a + (b + c) = (a + b) + c

Based on this and having the expression 3 + 19- 12, we can apply the Associative property as following:

(3 + 19) - 12 = 3 + (19 - 12)

Therefore, the  expression that illustrates the Associative property of addition is the one shown in the Third option.

You might be interested in
Taking away 5tens from 400gives
RideAnS [48]

Answer:

350

Step-by-step explanation:

Hope you have a great day and hope I helped

4 0
3 years ago
Mileage tests are conducted for a particular model of automobile. If a 98% confidence interval with a margin of error of 1 mile
kipiarov [429]

Answer: 37

Step-by-step explanation:

As per given description in the question, we have

Population standard deviation : \sigma=2.6\text{ miles per gallon}

Critical value for 98% confidence interval = z_{\alpha/2}=2.33

Margin of error : E= 1 mile per gallon

Formula we use to find the sample size :

n=(\dfrac{z_{\alpha/2}\cdot \sigma}{E})^2

i.e. n=(\dfrac{(2.33)\cdot(2.6)}{1})^2

\Rightarrow\ n=36.699364\approx37

Therefore , the number of automobiles should be used in the test =37

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B8%7D%20%2B%201%20%5Cfrac%7B1%7D%7B2%7D%20" id="TexFormula1" title=" \frac{
mart [117]

To add fractions together, you must convert the smaller fraction (\frac{1}{2}) to a denominator that matches the other fractions denominator.

In this case, 1/2 would become 4/8

We can add 4/8 to 7/8 to get 11/8

Then we can add the 1 to it, which acts as 8.

Which gives us 19/8

Or 2 3/8


5 0
3 years ago
Simplify into a single log with a single argument:
julia-pushkina [17]

Answer:

2 \log_8 8

Step-by-step explanation:

3 \log_8 8 - 2 \log_8 4 + \log_8 2 =

= 3 \log_8 8 - 2 \log_8 4 + \log_8 2

= 3 \log_8 8 - 2 \log_8 8^\frac{2}{3} + \log_8 8^\frac{1}{3}

= 3 \log_8 8 - 2 \times \dfrac{2}{3} \log_8 8 + \dfrac{1}{3} \log_8 8

= 3 \log_8 8 - \dfrac{4}{3} \log_8 8 + \dfrac{1}{3} \log_8 8

= 2 \log_8 8

Which equals simply 2 since log base 8 of 8 is 1.

5 0
3 years ago
Lines &amp; and m are intersected by transversalt and 2 im.
adelina 88 [10]
I’m not sure on how
To answer
8 0
3 years ago
Other questions:
  • The diameter of a circular garden is 18 feet. What is the approximate area of the garden?
    10·2 answers
  • How I Divide 27 in to 624
    7·1 answer
  • Translate the phrase into a variable expression. use the letter n to name the variable. if necessary, use the asterisk ( * ) for
    11·1 answer
  • A quadrilateral has congruent side lengths. 2 opposite angles have measures of 100 degrees. The other 2 opposite angles have mea
    10·2 answers
  • For g(x)=x^2-2, determine g(x+2)
    15·1 answer
  • What is the probability that the employee is less than 175 cm tall- chosen from those with brown hair
    10·1 answer
  • What are the x-values of the quadratic equation (x-2)^2-9=0?
    6·1 answer
  • at a soccer match for every goal team a score team the score 3 goals the ratio of the number of goals scored by team to the numb
    13·1 answer
  • Hard Blues Music buys CDs with a list price of $32,000. If the wholesaler offers trade discounts of 3/2/1, find the net price fa
    5·1 answer
  • Estimate a 25% tip on a bill of $61.77 by first rounding the bill amount to the nearest ten dollars
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!