Why might you want to use properties to change the order and grouping of the numbers in the following sum? - 45.2+(-7.9) +(-3.8)

-45.2 and - 7.9 are opposite numbers.

- 45.2 and -3.8 are opposite numbers.

-45.2 and -7.9 are compatible numbers.

-45.2 and -3.8 are compatible numbers.

c. 65°

step-by-step explanation:

we are given a triangle with two known angles, 62° and 53°, while the third angle x is unknown and we are to find its value.

we know that the sum of angles in a triangle is equal to a total of 180 degrees. so we can write it as:

x + 62° + 53° = 180°

solving to find the value of x:

x = 180 - (62 + 53) = 65°

therefore, the value of x in this triangle is 65°.

i think asking google will you get the answer to that question

answer: 8

step-by-step explanation:

shorter then the tree