Answer:
28
Step-by-step explanation:
Answer:
98
Step-by-step explanation:
there are 12 inches in one foot so if 5x12=60
12x8=96
Answer: 
Step-by-step explanation:
This is a <em>homogeneous linear third-order differential equation</em>
z′′′+2z′′−4z′−8z=0 so the
FIRST STEP is to find the characteristic equation and its roots
<em>
</em>
Using the method of finding roots of a polynomial (using m = 2) would provide the solution below
(m-2)(m+2)(m+2)=0; m = 2 and m = -2 (repeated twice)
SECOND STEP is to write the general solution with the arbitrary constants.
The general solution based on the roots and the using x as the independent variable would provide

<em>*It should be noted that when the characteristic equation has a repeated root, the general equation form becomes similar to the last part of the answer*</em>
Answer:
18.15
Step-by-step explanation:
21% of 15 is 3.15 so 15 plus 3.15 = 18.15
Twelve hours later then we went to sleep and then woke me back at my house after my birthday and I got invited