Answer:
Step-by-step explanation:
An easy way is to pretend that 25 is positive. 14+25= 39. If we know that the mathematical equation of positive+negative= negative, then we switch the 39 to -39.
Answer:
15 cm
Step-by-step explanation:
The volume of a cylinder is given by
... V = πr²h
Then
... h = V/(πr²)
Substituting the given dimensions, you have
... h = (753.6 cm³)/(3.14·(4 cm)²) = 15 cm
3-(-9)=12
answer of this question is 12
