|12| ÷ 2 • |-5|
= 12 ÷ 2 • 5
= 6 • 5
= 30
Absolute values just make the number positive if it is negative. The number stays positive if it’s positive.
Answer: 34.93 units
Step-by-step explanation:
The volume of a rectangular prism can be calculated with this formula:

Where "V" is the volume, "B" is the base area and "h" is the height.
Since we need to find the height, we must solve for "h":

We know that the volume of that wooden chest (which is in the shape of a rectangular prism) is 524 cubic units and the base area is 15 square units. Then:

Subsitituting these values into
, we get that the height of the chest is:

Answer:
A
Step-by-step explanation:
Given
x² - x = 30
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(-
)x +
= 30 + 
(x -
)² =
Take the square root of both sides
x -
= ±
= ± 
Add
to both sides
x =
±
, thus
x =
-
= - 5
x =
+
= 6