Answer:
perpendicular lines
Step-by-step explanation:
when the two equation are written in slope intercept form:
y = -4x -7
y = 1/4x -2
the slopes are opposite reciprocals which means they are perpendicular
Subtract the length twice, then divide the remainder to find the width.
122-35-35=52
52/2 =26
Answer:
9
Step-by-step explanation:
90/10 =9
Answer:

Step-by-step explanation:
hello

so to know the maximum to y we can check the maximum of
f(x)=
f is derivable and f'(x)=6-2x
f'(x)=0 <=> x = 3
so the maximum is reached for x = 3
f(3)=18-9=9
and then

to be rigorous, we can write the variation table of y to show that there is only one maximum
hope this helps