For this case we have the following system of equations:
5x + 3y = 17
-8x - 3y = 9
We can rewrite the system like:
Ax = b
Where,
A = [5 3; -8 -3]
b = [17; 9]
x = [x; y]
The determinant of matrix A is given by:
lAl = ((5) * (- 3)) - ((3) * (- 8))
lAl = (-15) - (-24)
lAl = -15 + 24
lAl = 9
Answer:
The determinant for solving this linear system is:
lAl = 9
Answer=157 seconds
1256 seconds 8 laps
1256/8=157seconds per lap
Answer:
I think -1 cuz 2+1--1 so yh I guess
for B I would get a large number of participants and see how much they walk in 1 day multiply it by 365 then by the average life span of human beings A might be similar. Hope that helped.
Hello from MrBillDoesMath!
Answer:
w = 8, -2
Discussion:
The expression is undefined when the denominator is zero. So when does
w^2 - 6w - 16 = 0? Let's factor the expression. A little trial and error shows that 8 + (-2) = 6 (the coefficient of w) and 8 * (-2) = -16 (the constant value) so w^2 - 6w -1 6 = (w-8) (w- (-2)) and the expression equals zero when w = 8 or w = -2
Thank you,
MrB
