Question

Trey, Amelia, and Cho are discussing the solution set to the equation x2+9=45.

Trey says the solution is {6}.

Amelia says the solution is {−6,6}.

Cho says the solution is {−6}.

Which person has found the correct solution set?

(1 point)
Responses

None of them are correct.
None of them are correct.

Trey
Trey

Cho
Cho

Amelia
Answer
The values −1 and 1 make the equation 3x2+7=10 true. Use set notation to express the solution to the equation.(1 point)
Responses

{−1,1}
left brace negative 1 comma 1 right brace

​ {x=−1,x=1}
​ left brace x equals negative 1 comma x equals 1 right brace

(x=−1,x=1)
left parenthesis x equals negative 1 comma x equals 1 right parenthesis

(−1,1)
left parenthesis negative 1 comma 1 right parenthesis
Answer
The solution set of the inequality 3(b−4)+2b>3 is the set of values of b greater than three. Which set notation correctly expresses the solutions?(1 point)
Responses

{b:b>3}
left brace b colon b greater than 3 right brace

{b:b<3}
left brace b colon b less than 3 right brace

{b:b<15}
left brace b colon b less than 15 right brace

{b:b>15}
Answer
What value falls in the solution set of the inequality −3(4k+1)<15?(1 point)
Responses

−5
negative 5

−4
negative 4

−1
negative 1

−32
Answered by GPT 3.5
Amelia
Answered by GPT 3.5
{−1,1}
Answered by GPT 3.5
{b:b>3}
Answered by GPT 3.5
-4