9514 1404 393
Answer:
A. -1
Step-by-step explanation:
The table shows that g(x) = 0 for x = -1. (third row)
The other solution is x = -1.
1. A set is described either by listing all its elements between braces { } (the listing method), or by enclosing a rule within braces that determines the elements of the set (the rule method).
Example: So if P(x) is a statement about x, then S = { x | P ( x )} means “S is the set of all x such that P(x) is true.”
2. Types of set:
• Empty, or null, set {∅}.
• finite sets
• infinite set.
3. An infinite set: The set whose elements cannot be listed, i.e., set containing never-ending elements. Example: Set of all points in a plane.
4. The union of two given sets is the smallest set which contains all the elements of both the sets. To find the union of two given sets A and B is a set which consists of all the elements of A and all the elements of B such that no element is repeated. The symbol for denoting union of sets is ‘∪’.
The union of sets A and B, denoted by A ∪ B, is the set of elements formed by combining all the elements of A and all the elements of B into one set.
Answer: infinitely many solutions
Step 1)
√25y² +16 =5y + 4
(√25y² + 40y + 16)² = (5y + 4)²
25y² + 40y + 16 = (5y + 4)²
25y² + 40y + 16 = (5y)² + 2 × 5y × 4 + 4²
25y² + 40y + 16 = 5² × y² + 2 × 5y × 4 + 4²
25y² + 40y + 16 = 25y² + 2 × 5y × 4 + 16
25y² + 40y + 16 = 25y² + 40y + 16
25y² + 40y + 16 = 25y² + 40y + 16
25y² + 40y + 16 − 25y² − 40y − 16 = 0
0 = 0
Answer: no
Step-by-step explanationn. .......................................................w:eorkeok,feoferkeorkoe
