Which values are solutions to the inequality? 2r≤3r−8 Select each correct answer. 6 7 8 9
2 answers:
Answer:
The correct answers are 8 and 9.
Step-by-step explanation:
To solve an inequality you have to solve it like an equality, but when you obtain the solution you don´t have only one value but a set of values that fit into the solution, in this case, the solution to the inequality is:
The set of values found for the solution of this inequality indicates that r takes values greater than or equal to 8.
Therefore the correct answers are 8 and 9.
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Answer:
B and F
Step-by-step explanation:
Given
x² + 4x + 4 = 12 ( subtract 4 from both sides )
x² + 4x = 8
Using the method of completing the square to solve for x
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 8 + 4, that is
(x + 2)² = 12 ( take the square root of both sides )
x + 2 = ± ( subtract 2 from both sides )
x = ± - 2
= ± 2 - 2
Hence
x = 2 - 2 → B
x = - 2 - 2 → F