1) 1
2) PA: between 2 and 3.
2) PB: Unsure about it.
X^2-4x=-2x+24
x^2-2x=24
x^2-2x-24=0
(x-6)(x+4)
Proof:
-6+4=-2
-6*4=-24
Final answer: (x-6)(x+4)
Implicit differentiation
take derivitive of both sides
1=15y^2dy/dx-12ydy/dx
1=dy/dx(15y^2-12y)
divide both sides by (15y^2-12y)
1/(15y^2-12y)=dy/dx
sub the point (-4,1)
1/(15(1)^2-12(1))=dy/dx
1/(15-12)=dy/dx
1/3=dy/dx
slope is 1/3
Answer:
2.729
3.4052
3.45
3.5
Step-by-step explanation:
Answer:
ft
Step-by-step explanation:
We know that the height of the object and the height of the shadow it casts are proportional. Therefore, if we let the length of the tree be 
, we can set up the following proportion to solve for it:
Solving for , we get:
(Cross-Products Property)
(Simplify)
(Divide both sides of the equation by 8 to get rid of 's coefficient)
(Simplify)
Therefore, the tree is ft tall. Hope this helps!
