Answer:
7.57 cm
Step-by-step explanation:
Volume of a cylinder = πr²h
π = 3.14
r= radius
h = height
1,800 = 3.14 x r² x 40
r² = 1800 /(3.14 x 40)
r² = 14.33121
√14.33121 = r
r = 3.785658 cm
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
Diameter = 2 x 3.785658 cm = 7.57cm
27 divided by 5 = 5.4 so if you round up you get 6. She’ll need to buy 6 cakes for everyone to have a piece of cake
The slope is -½, and the y intercept would be (0, -5/2)
28 x 3 3/4 = 84 + 21 = 105 copies.
