Answer:
7.21
Step-by-step explanation:
14^2-12^2=52
=7.21
Answer:
$12.60
Step-by-step explanation:
find unit price first
9÷5
1.8×7
12.6
Answer:
k = - 1
Step-by-step explanation:
If (x - 5) is a factor of p(x) then p(5) = 0
p(5) = 5³ - 6(5)² + 5k + 30 = 0 , that is
125 - 150 + 5k + 30 = 0
5 + 5k = 0 ( subtract 5 from both sides )
5k = - 5 ( divide both sides by 5 )
k = - 1
First, we need to figure out the volume of the cylinder that holds the ink. The formula for the volume of a cylinder is

We have the diameter, but we can easily find the radius by dividing it by 2. 0.400/2=0.200. Now, we plug our numbers into the formula.

Now, we need to figure out how much ink he uses each week. We do this by dividing the volume by the amount of weeks, or 1.445/7 = 0.206.
So, the student uses

ink each week.
Answer:
k f78iiujyhtgrf
Step-by-step explanation: