Students were enquired to answer a question at institution and to assert what is most important for them to succeed. The one that response stood out from the rest was practice. People who usually are successful do not become successful by being born. They work hard and dedication their lives to succeeding. This is how you can fulfill your goals. followed below some question and answer examples that you may possibly make use of to boost your knowledge and gain insight that will assist you to keep up your school studies.
Question:
Which expression is equivalent to -4-9?
Answer:
The expression that is equivalent to -4-9 is -4 + (-9).
The rule of arithmetic calculations state that when calculating algebraic expression;
plus sign multiplied by plus sign will remain positive
- i.e. (+) × (+) = +
minus sign multiplied by a minus sign will be positive
- i.e. (-) × (-) = +
plus sign multiplied by a minus sign will be negative
- i.e (+) × (-) = –
The expression given is -4 – 9 = -13
Option (a)
- -4 + (-9)
Recall that: (+) × (-) = –
Open brackets
= -4 – 9
= – 13
Option (b)
- 4 + 9 = 13
Option (c)
- -4 + 9 = 5
Option (d)
- 4 – 9 = -5
Therefore, we can conclude that the expression that is equivalent to -4-9 is -4 + (-9).
They can hopefully assist the student deal with the question by using the questions and answer examples. Then could have some sharing in a group discussion and also learning with the classmate that is related to the topic, so another student also obtain some enlightenment and still keeps up the school learning.