Step-by-step explanation:
A real number MUST be able to be represented on a number line.
All numbers can be placed on a number line including irrational numbers.
Numbers like π can be placed between 3.13 and 3.15. It is a number.
Numbers like x or ∑ isn't a "REAL" number because it has no value.
Answer:
triangle 1 and triangle 3.
Step-by-step explanation:
Given : Four triangle .
To find : Which triangles in the diagram are congruent.
Solution :
By Congruent rule Side angle side : In triangle 1 and triangle 3 are congruent by side angle side .
Therefore, triangle 1 and triangle 3.
The correct option is: Option (C)

Explanation:
It is the property of log that if it contains the fraction, it can be expressed as the difference of the log of numerator and the log of denominator.
The general form is:

Hence the correct answer is

.
Ok what happened what do you need help on
Answer: 
Step-by-step explanation:
To solve the exercise you must apply the following proccedure:
- Apply the distributive property.
- Keep on mind that when you multiply two powers with equal base, you must add the exponents.
- Add like terms.
Therefore, you obtain the following product:
