2 years ago

¿Qué propiedad justifica que 4+ [6 + (-2)] = [4 +6] +(-2)?

Mathematics

1 answer:

hammer [34]2 years ago

5 0

Answer:

addition is commutative. 4+(6+(-2)=8 whiles

Step-by-step explanation:

4+6-2=8

You might be interested in

5 Divided by (1200+700)

solmaris [256]

Answer:

380

Step-by-step explanation:

1200 + 700 = 1900/5 = 380

7 0

3 years ago

This last one I need help on too

ExtremeBDS [4]

Answer:

$x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}$

Step-by-step explanation:

simplify $\frac{-3}{x-2}$ by putting the negative sign on the outside. $\frac{2x}{x-1}-\frac{2x-5}{x^2-3x+2}=-\frac{3}{x-2}$

find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

$\frac{2x}{x-1}\left(x-1\right)\left(x-2\right)-\frac{2x-5}{x^2-3x+2}\left(x-1\right)\left(x-2\right)=-\frac{3}{x-2}\left(x-1\right)\left(x-2\right)$

Simplify:

$2x\left(x-2\right)-\left(2x-5\right)=-3\left(x-1\right)$

solve: $x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}$

3 0

3 years ago

The table shows the Webster family’s monthly expenses for the first three months of the year. They are $2,687.44, $2,613.09, and

zloy xaker [14]

8109.17 that is the answer if u add it

6 0

3 years ago

Read 2 more answers

A submarine dives 68 meters below its original location and then rises. the number line shows the elevations of the submarine af

Masteriza [31]

i have to see the number line tho

8 0

3 years ago

Read 2 more answers

Where are my smart friends?? I had $13.00. My Mom gave me $10.00. My Dad gave me $30.00. My Aunt, My Uncle, and grandma gave me

sergiy2304 [10]

Answer:

This would bring you to $160.00. This is because you initially had $20.00, because of the $13 and $7. Then, your family gave you a total of $140.00, and 140 + 20 = 160.

Step-by-step explanation:

3 0

3 years ago

¿Qué propiedad justifica que 4+ [6 + (-2)] = [4 +6] +(-2)?​

¿Qué propiedad justifica que 4+ [6 + (-2)] = [4 +6] +(-2)?