Answer:
A
Step-by-step explanation:
multiply the total cost by the discount
500*.45=225
276
552*.5=226
540*.48=259.2
leaving option a at the lowest price, $225
If f(z)=m^z - n^z <span>and f(1)=2, f(2)=8
then
m - n = 2 so m = n + 2
m^2 - n^2 = 8
substitute </span>m = n + 2 into m^2 - n^2 = 8
so
m^2 - n^2 = 8
(n + 2)^2 - n^2 = 8
n^2 + 4n + 4 - n^2 = 8
4n = 4
n = 1
m = n + 2 = 1 + 2 = 3
so f(z) = 3^z - 1^z
if z = 1 the f(1) = 3^1 - 1^1 = 2
if z = 2 the f(2) = 3^2 - 1^2 = 9 - 1 = 8
if z = 3 the f(3) = 3^3 - 1^2 = 27 - 1 = 26
answer
f(3) = 26
Answer:
Step-by-step explanation:
Here, the given expression is
Now, simplifying the brackets, we get
=
Now, operate on the like terms.
=
=
Hence, the given expression is simplified to the quadratic equation
0.25r-0.125+0.5r=0.5r
0.75r-0.125=0.5r
-0.125= -0.25r
r=0.5
Answer:
y=-0.4x-1
Step-by-step explanation:
lets write the equation of the perpendicular graph: y=2.5x+1
Two graphs are perpendicular if the multiplication of their slopes are equal to -1.
So we can say that: 2.5*x=-1 → x=-0.4
Now we will find the needed graph with the help of the slope and the point (0,-1):
y-(-1)=-0.4*(x-0) → y+1=-0.4x → y=-0.4x-1