A surd is an irrational number or expression containing a square root, cube root, etc., that can't be simplified to a rational number.
Example: √2, ³√5 are surds because they involve radical signs.
An angle inscribed in a semicircle is always 90° due to the Thales' Theorem.
It is called a right angle because the angle subtended by a diameter is always right.
(√x + √y) (√x - √y)
= (√x)² - (√y)²
= x - y
The graph shows that Todd ate a significantly larger portion than Rick, then Rick 25% and Todd 75% is accurate.
Even numbers leave no remainder when divided by 2.
Examples include 2, 4, 6, 8, etc.
A bisector of an angle divides the angle into two equal parts.
It is a line or ray that starts from the angle's vertex and splits it evenly.
Waheed runs 9 miles in 1 hour.
We need to find how many hours it will take him to run 108 miles.
= 108 ÷ 9 = 12 hours
Given a and b are integers and b ≠ 0:
a/b represents a Rational number.
A rational number is a number that can be expressed as the ratio of two integers, where the denominator is non-zero.
De Morgan's first law states that the complement of the union of two sets A and B is equal to the intersection of their complements.
The correct representation is:
(AUB)' = A' ∩ B'
