amyflorida778 amyflorida778
  • 02-06-2021
  • Mathematics
contestada

which of the following statements is not always true?

a + (-b ) = -b + a

(a + b) + (-c) = a + [b + (-c)]

-(-a) = a

a - (-b) = (-b) -a

Respuesta :

sofiahemed22
sofiahemed22 sofiahemed22
  • 02-06-2021

Step-by-step explanation:

The answer is a - (-b) = (-b) - a

for example if we take;

a = 4

b = 2

c = 2

and we replace;

4 - ( -2) = (-2) - 4

6 = -6

which is not true....

All the remaining are true....

even u can just use the values of abc and check if its true....

Answer Link

Otras preguntas

Point O is on line segment NP. Given OP = 10, NP = 2x, and NO = x +7, determine the numerical length of NO.
A researcher wanting to determine if amount of hours sleeping was related to one’s attitude would evaluate the research study using __________ analysis. A. vari
Answer the questions to determine a conditional probability. How many customers are on payment plan B? customers How many of the customers on plan B text? custo
Solve the following equation for x: 2x + 5y = 8
9) What trend do you notice about carbohydrates in the graph above? your help is appreciated thanks ! :)
For his long distance phone service, Deandre pays a $3 monthly fee plus cents per minute. Last month, Deandre's long distance bill was $23.24. For how many minu
what could English woman colonists not do after they got married
Plz help with 8th science
Can someone help????
matthew opened a checking account with 150. On monday, he bought lunch for 9.30 and wrote a check for 25.75. He deposited 75 on wednesday, and 65.18 was deducte