Answer:
Step-by-step explanation:
21 x 0.07= 1.47
21+1.47=22.47
Total=22.47
Answer:
$319
Step-by-step explanation:
add the money and then what u get for the money add it to the other numbers u have.
Answer:
3 ; 4/3
Step-by-step explanation:
x + 4(1/x) = 13/3
x + 4/x = 13/3
x^2 -13/3x + 4 = 0
3x^2 - 13x + 12 = 0
Δ = 169 - 144 = 25
x1 = (13 + 5)/6 = 3
x2 = (13-5)/6 = 4/3
(6,-8)(6,8)
d = sqrt ((x2 - x1)^2 + (y2 - y1)^2)
d = sqrt ((6 - 6)^2 + (8 - (-8)^2)
d = sqrt ((0^2 + 16^2)
d = sqrt 16^2
d = sqrt 256
d = 16 <==
The parabola has 2 x intercepts, so quadratic equations has 2 real roots (-6), and 3
we can write (x+6)(x-3)=0 , x²+6x-3x-18=0, y=x²+3x-18
check y int =-18 on the graph
y=1x²+3x-18