Answer:
The better but is 3 for $3.33
12 for $13.32
Step-by-step explanation:
3.33/3 = 1.11
2.68/2 = 1.34
The better buy is 3 for $3.33
1.11 x 12 = 13.32
1.34 x 12 = 16.08
(x , y → (x - 5, y - 3)
the coordinates of S(1 , 5),T(1,1), U(4, 1)
the coordinates of the image are S'( - 4, 2), T'( - 4, - 2), U'( - 1 , - 2)
consider the difference in the x- coordinates of the original to the image
1 → - 4 = - 5, 1 → - 4 = - 5, 4 → - 1 = - 5
so the x- coordinate rule is x - 5
now consider the difference in the y- coordinates of the original to the image.
5 → 2 = - 3, 1 → - 2 = - 3, 1 → - 2 = -3
so the y- coordinate rule is y - 3
hence (x, y) → (x - 5, y - 3)
Answer:
f(x) =4x² + x - 7
Step-by-step explanation:
f(x) = ax² + bx + c
f(1) = a + b + c
f(-3) = 9a - 3b + c
f(3) = 9a + 3b + c
a + b + c = -2 -----(1)
c = -2-a-b -----(2)
9a - 3b + c = 26 ------(3)
9a + 3b + c = 32 -------(4)
(2)->(3)
9a-3b-2-a-b = 26
8a-4b = 28
4(2a-b) = 28
2a-b = 7 ----(5)
(2)->(4)
9a+3b-2-a-b = 32
8a+2b = 34
2(4a+b) = 34
4a+b = 17 ----(6)
(5)+(6)
6a = 24
a = 4
sub a=4 into(6)
4(4)+b = 17
b = 1
sub a=4,b=1 into (2)
c = -2-4-1
c = -7
Answer:
$71.20
Step-by-step explanation:
Multiply 89 to .2 and you get 17.8 then you subtract that from the originat cost.
