Answer:
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Step-by-step explanation:
Answer:
12 inches
Step-by-step explanation:
Given data
Height= 11 inces
Volume= 4,973.76 cubic inches.
The expression for the volume of a cylinder is
V= πr^2h
substitute
4,973.76= 3.14*r^2*11
4,973.76= 34.54r^2
r^2= 4,973.76/ 34.54
r^2= 144
Square root both sides
r=√144
r=12 inches
Answer:
The area increased by a factor of 4
Step-by-step explanation:
If the scale factor is 4 and only the height changes
A = 1/2 bh
A = 1/2 b(4h)
A = 1/2 bh(4)
A = A4
The new area is the old area increased by 4
Essentially, we are being asked to find the unit rate. We want to figure out how many dollars it costs to buy 1 yard of fabric.
$10 : 8 yards
---Divide both values by 8
$1.25 : 1 yard
Hope this helps!