To get the vertex of the parabola we proceed as follows;
y=-7(x-4)^2-5
The above can be written as:
y=-7x^2+56x-117
The values of a,b and c are:
a=-7, b=56 and c=-117
x=-b/(2a)
x=-56/(-7*2)=4
but;
y=-7x^2+56x-117
y=-7(4)^2+56(4)-117
y=-5
Thus;
x=4 and y=-5
The vertex will be at point (4,-5)
Answer:
84+n=342
Step-by-step explanation:
you would subtract 84 from 342 to find the width since it is perimeter.
Answer:
50 + 11.5x = 188
Step-by-step explanation:
Answer:
Mia: 90 and Isabella: 30
Step-by-step explanation:
Mia: 60 x 0.5 (50%) is 30
Isabella: 60 x 1.5 (150%) is 90
