To solve an absolute inequality first step is to isolate absolute value expression.
Hence remove -4 from the left side. So, add 4 to each sides of the inequality.
2|x + 7|−4 ≥ 0
2|x + 7|−4 +4≥ 0 +4
2|x + 7| ≥ 4 Combine the like terms.
Divide each sides by 2.
|x + 7| ≥2
Next step is to remove the absolute value sign. So,
x + 7≥2 and x+7≤-2.
x≥2-7 and x≤-2-7
x≥-5 and x≤-9
So, the correct choice is C. {x | x ≤ -9 or x ≥ -5}.
y² = 2x ⇒ x =
vertex (0, 0)
focus: ⇒ p = so focus is: ( , 0)
directrix: x =
Answer:
-3
Step-by-step explanation:
Mark me as brainliest
Answer:
C. 439.6 in.²
Step-by-step explanation:
The container is a cylinder.
Since the two circular bases won't be covered, therefore:
The least construction paper needed to cover the remaining surface = curved surface area of the cylinder
= 2πrh
r = 5 in.
h = 14 in.
Plug in the values
Curved surface area = 2×π×5×14 = 439.6 in.²
To round to the nearest ten thousand, look at the number in that place. This number is 8. Now look at the number after it. It is less than five so keep the number as it is. This number rounded would be 780,000.