Precalc Midterm Review Day 1

6x² - 54 ≤ 0

• -3 ≤ x ≤ 3
• x ≤ -3 or x ≥ 3
• -3 < x < 3
• x < -3 or x > 3

What is the end behavior on the left side

What is the simplified form of (–6i)(3i)

• –18

• –18i

• 18

• –18i²

Tags

CCSS.HSN.CN.A.2

What is the domain of the following function?

 $g\left(x\right)=\frac{1}{\sqrt{x+7}}$  

• (-7, infinity)

• (-infinity, 7)

• [-7, infinity)

• (7, infinity)

• t = 1.719

• t = 0.071

• t = 4.000

• t = 3.509