Question

Which mathematical statement corresponds to the given statement?

“An unknown number x is less than 3 but greater than –1.”

–1 < x < 3
–1 ≤ x < 3
–1 ≤ x ≤ 3
–1 < x ≤ 3

Answer 1

-1<times<3

Answer 2

thanks! thought so. what about this one?

Which expression is equivalent to |x| < 11?

x < –11 and x > 11
x > –11 and x < 11
x < –11 or x > 11
x > –11 or x < 11

Answer 3

x > -11 or x < 11

Answer 4

Thanks heres one more!!
Which is the solution set for –7 ≤ 4x + 1 ≤ 5?

x ≥ or x ≤


x ≥ and x ≤

x ≤ –2 or x ≥ 1

x ≥ –2 and x ≤ 1