Answer:
5 hours
Step-by-step explanation:
let the time she baby sat be x.
4x= 20
x= 5
Yes area, the amount of surface covered
Answer:
Step-by-step explanation:
Let, width of the rectangle be 'w'
length of the rectangle=w+5
Perimeter=60 inches
Perimeter of the rectangle=2(Length+width)
Dividing by '2' both sides:
Subtracting '5' both side:
Dividing by '2' both side:
Answer:
x+9
Step-by-step explanation:
If we use syntetic division we get that
Answer:
a) y=3x-11
b) y=-1/3x-1
Step-by-step explanation:
First find the slope of the line
rise/run
rise is 3
run is 1
so slope is 3
since this line is parallel to "a", the slope of "a" will also be 3
the equation of a will be
y-y1=3(x-x1) -- where x1 and y1 will be the points it passes through (3,-2)
y-(-2)=3(x-3)
y+2=3x-9
y=3x-9-2
y=3x-11
since this line is perpendicular to "b", the slope of "b" will also be reciprocal negative , -1/3
y-y1=-1/3(x-x1) -- where x1 and y1 will be the points it passes through (3,-2)
y-(-2)=-1/3(x-3)
y+2=-1/3x+1
y=-1/3x+1-2
y=-1/3x-1