Let L be length and W be width
The perimeter of a rectangle is 2W+2L=36
Thus 2W=36-2L, W=18-L
Area of a rectangle is WL=80
Thus (18-L)(L)=80
18L-L^2=80
L^2-18L+80=0
(L-8)(L-10)
Thus L can either be 8 or 10.
Because WL=80
If L is 8, then W=10
If L is 10, then W=8
So either way, the notebook is 8 by 10
Answer:
Theta = 52.1
Step-by-step explanation:
sin theta = opp / hyp
sin theta = 15/19
Take the inverse sin of each side
sin^-1 sin theta = sin^1- (15/19)
theta =52.13635364
To the nearest tenth
Theta = 52.1
Answer:
no
Step-by-step explanation:
this is because when dealing with the power, it involves multiplication
Answer:
The standard form of a quadratic equation is:
, 
Quadratic Formula Derivation:
Completing the Square:
Square Root property:
Answer:A=X x=8
B=x X=9
C=x X=10
Step-by-step explanation:
