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3 years ago

Here is an addition sentence.

Mathematics

1 answer:

kiruha [24]3 years ago

4 0

Answer: B. $3+(1+11)=15$

Step-by-step explanation:

1. By definition, the associative property of addition is:

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

2. Therefore, if you have the following expression:

$(3+1)+11=15$

You apply the Asociative property of addition by regrouping the numbers as following:

$3+(1+11)=15$

3. Then, you can conclude that the correct option is B.

You might be interested in

Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3.

Ugo [173]

Answer:

The correct answer is

$2\frac{2}{9}$

Step-by-step explanation:

Method 1

We want to simplify,

$-2\frac{1}{9} -(-4\frac{1}{3})$

The double negatives becomes positive,

$=-2\frac{1}{9} +4\frac{1}{3}$

We now add the whole number parts and the fractions separately

$=-2+4-\frac{1}{9} +\frac{1}{3}$

This will give us,

$=2-\frac{1}{9} +\frac{1}{3}$

The least common denominator for the fractional parts is 9.

$=2+\frac{-1+3\times1}{9}$

$=2+\frac{-1+3}{9}$

$=2+\frac{2}{9}$

$=2\frac{2}{9}$

Method 2

We want to simplify,

$-2\frac{1}{9} -(-4\frac{1}{3})$

The double negatives becomes positive,

$=-2\frac{1}{9} +4\frac{1}{3}$

We first convert the mixed numbers to improper fractions to obtain,

$=-\frac{2\times9+1}{9} +\frac{4\times3+1}{3}$

We carry out the multiplication in the numerator to get,

$=-\frac{18+1}{9} +\frac{12+1}{3}$

We add in the numerator to get,

$=-\frac{19}{9} +\frac{13}{3}$

The least common denominator is $9$ .

$=\frac{-19+13\times3}{9}$

$=\frac{-19+39}{9}$

$=\frac{20}{9}$

We convert back to mixed numbers to get,

$=2\frac{2}{9}$

4 0

3 years ago

What is the equation for (0,3) and (1,1)

n200080 [17]

Y=-2x+3 is the answer.

4 0

2 years ago

How do you solve 4b^2+8b+-12=0. Also find the parabole.?

Likurg_2 [28]

First you divide everything by 4 which will become b^2+2b-3=0
Then you can factor this which is
(b-1)(b+3)=0
B=1
B=-3 ... I think that's how you do it

4 0

3 years ago

PLEASE HELP VERY OVERDUE<br>No links!!

Marina86 [1]

Answer: Larissa

Explanation:

Fraction:

Ellen: 2/4

Larissa: 12/16 = 3/4

Because 3/4 > 2/4 => Larissa > Ellen => Larissa = most successful

3 0

2 years ago

Pls help with algebra

My name is Ann [436]

Answer:

x=16

Step-by-step explanation:

Actually this is trig I believe.

cos60=8/x

x=8/cos60=16

6 0

3 years ago

Read 2 more answers