Answer:
it is 8
Step-by-step explanation:
the negative sign ia cancelled as it is multiplied by anoyhee negative sign
Area of the base and the top :(4x7) + (4x7) = 56
Lateral area of the front & the back = (4x12) + (4x12) = 96
Lateral area of the right & left = (7x12) + (7x12) = 168
TOTAL AREA = 56+96+168 = 320
Volume = 4x7x12 = 336
RATIO AREA/VOLUME = 320/336 . Simplify by dividing numerator and denominator by 16. Final result: AREA/VOLUME = 20/21
Add up all the lengths of the segments. kb = bl, ak = cl, am = cm.
the perimeter is 48
Answer:

Step-by-step explanation:
The answer choices suggest there is a common factor of (x+2) that can be removed from numerator and denominator.
The denominator factors as ...

The numerator obviously has no factors of x. We can try any of several means to determine if (x+2) is a factor. I tried synthetic division and found that the numerator can be written as ...

Then the expression simplifies to ...

Answer:
376.81
Step-by-step explanation: 376.81