MATHEMATICS MIDDLE SCHOOL

100 POINTS FOR ANSWERS AND BRAINIEST WITH THANKS AND RATING Select from the drop-down menus to correctly identify each property shown.
the options are:
COMMUTATIVE PROPERTY
ASSOCIATIVE PROPERTY
OPPOSITE OF A SUM PROPERTY

A. −2.2+(−3.7+(−1.4))=(−2.2+(−3.7))+(−1.4)
B. −7.2+(−1.7+(−2.3))=−7.2+(−2.3+(−1.7))
C. −3.5−4.2=−(3.5+4.2)
D. (−5.2+(−8.4))+(−2.8)=−5.2+(−8.4+(−2.8)

Answers

Answer 1

Answer:

Commutative property of addition:

a + b = b + a

Associative property of addition:

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

Opposite of a sum:

- a - b = - (a + b)

If we look at the options, A and D follow associative property.

B follows commutative property.

C follows opposite of a sum property.

Answer 2

Answer:

Answer: Associative Property

Step-by-step explanation:

Related Questions

Please help me with my math
How many solutions does the nonlinear system of equations graphed below have?a . fourb . twoc . oned . zero
If 90 is 80% of a value, what is that value?
How can I anwser this one? ? 4x2+16x=0
How many inches is in 60 feet

there are 13 animals in a barn. some are ducks and some are pigs. there are 40 legs in all. how many of each animal are there?

Answers

Let X be chickens
Let Y be pigs,
then x+y=13
the animals have 2x+4y legs,
so 2x+4y=40
The system of the equations
[X+y=13
[2x+4y=40
Divide the second equation by 2
[x+y=13
[x+2y=20
subtract the first equation from the second one
y=20-13
y-7 pigs
substitute y=7 into the first equation
x+7=13
x=13-7
x=6 chickens

I need help on this question.

Answers

Let's go:

The circumcenter is the intersection of the perpendicular bisectors on the sides of a triangle. An important property of the circumcenter is the fact that it is equidistant from its vertices. PC = RC = QC:

3x + 7 = 51 - x

3x + x = 51 - 7

4x = 44

x = 11

I hope I helped you.

Miguel did the following math problem: 6 5 · 6 4 = 36 9 .Which of the following is a true statement?

He is incorrect because he multiplied the bases.
He is incorrect because he should have multiplied the exponents.
He is correct.
He is incorrect because he should have subtracted the exponents.