What does the symbol mean in a math equation?

This symbol < means less than, for example 2 < 4 means that 2 is less than 4. This symbol > means greater than, for example 4 > 2. ≤ ≥ These symbols mean ‘less than or equal to’ and ‘greater than or equal to’ and are commonly used in algebra.

What does this symbol mean in math ⊥?

perpendicular to
The symbol ⊥ means is perpendicular to . In the figure, PR⊥QS. The right angle symbol in the figure indicates that the lines are perpendicular.

What does the little 2 symbol mean in math?

The power (or exponent) of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. In this example the little “2” says to use 8 two times in a multiplication: 82 = 8 × 8 = 64.

What is special about the number 80?

80 is: the sum of Euler’s totient function φ(x) over the first sixteen integers. a semiperfect number, since adding up some subsets of its divisors (e.g., 1, 4, 5, 10, 20 and 40) gives 80. a ménage number.

What is the math symbol that looks like an upside down T?

Perpendicular lines
Linear Relationships Perpendicular lines intersect at a right angle. Rather than writing out the words ‘parallel’ and ‘perpendicular,’ we use geometric notation. The symbol for two parallel lines is two vertical lines. The symbol for two perpendicular lines is an upside-down T.

What does the number 80 represent in the Bible?

In the Hebrew alphabet, the number eighty corresponds to the letter pey (or fey). It is thought the symbol represents the divine spark of God within the soul.

What can you multiply to get 80?

Factors of 80 in Pairs

• 2 × 40 = 80.
• 4 × 20 = 80.
• 5 ×16 = 80.
• 8 ×10 = 80.

What is function notation?

Function notation is the way a function is written. It is meant to be a precise way of giving information about the function without a rather lengthy written explanation. The most popular function notation is f (x) which is read “f of x”.