Answer:
Step-by-step explanation:
For ax²+bx+c = 0, the solutions are ...
For the given quadratic term, a=1, b=-4, c=5, so the solutions are ...
76.343, 76.342, 76.332, 76.232
Answer:
Minutes: | Charge:
0 2%
5 22%
10 52%
15 72%
Step-by-step explanation:
3:45 pm, 1 hour before 5 is 4, and adding 15 minuets makes 3 : 45
Answer:
(x=0, y=11)
(x=2, y=9)
Step-by-step explanation:
first equation substitution for x first.
y=11-x
plug into 2nd equation
(x+2)^2+(11-x-7)^2=20
this should lead you into a quadratics equation.
you get x=0, x=2.
do the same for y value this time, subbing in the x value
(11-y+2)^2+(y-7)^2=20
this also leads into a quad equation
solve and you get y=11, and y=9
