Answer:
Step-by-step explanation:
The answer choices don’t make sense. The volume of a cylinder of height 45mm and radius 5mm = π5²*45 = 1125π mm³.
Three of the answer choices are larger than 1125π.
:::::
volume of one cone = πr²h* ⅓
Volume of cylinder section = πr²h
Total volume = πr²h*⅔ + πr²h = πr²h*5/3 = π5²*15*5/3 = 625π
Step-by-step explanation:
No the angle of each piece should be 60 degrees, if the three pieces were to be 25 each that would only add to 75
(3x-5)(2x+7) =
= 3x·2x + 3x·7 - 5·2x - 5·7
= 6x² + 21x - 10x - 35
= 6x² + 11x - 35
