Answer:
(7x + 27) units
Step-by-step explanation:
A rectangle is a quadrilateral (has four sides) in which opposite sides are equal and parallel, also all the angles are equal. The area of a rectangle is given as:
Area = Length × Width
Given that the area of the rectangle is 21x + 81 and the width is 3 unit, to find the length of the rectangle, we have to use the formula of the area and then get the length. Therefore:
Area = Length × Width
21x + 81 = Length × 3
Length = (21x + 81) /3
Length = 7x + 27
The length of the rectangle is 7x + 27 units
Answer:
186.111111111
Step-by-step explanation:
That is the vertex
since the leading coefient (the term in front of the the x^2 term)
get into form
y=a(x-h)^2+k
te vertex is (h,k)
max value is k which occurs at x=h
complete the square
h(t)=(2x^2+4x)+7
h(t)=2(x^2+2x)+7
h(t)=2(x^2+2x+1-1)+7
h(t)=2((x+1)^2-1)+7
h(t)=2(x+1)^2-2+7
h(t)=2(x+1)^2+5
vertex is at (-1,5)
the max value is 5
Y = -8
I think.. hope this helps!
Ok this is a linear equation that is descending and is in slope intercept form