The length of a rectangle is represented by (6x-2), and the width is represented by (x-1). Which expression best represents the
perimeter of the rectangle?
A) 14x - 6
B) -8x +2
C) 6x^2 - 8x
D) 6x^2 - 8x +2
Thanks!
A) 14x - 6
B) -8x +2
C) 6x^2 - 8x
D) 6x^2 - 8x +2
Thanks!
2 answers:
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Answer:
After 2 seconds
Step-by-step explanation:
First step is find an equation of velocity:
h(t)=-16t2+64t+112. The velocity function is derivated from position function, so we should do that.
v(t)= h´(t)= -16*2*t+64 ⇒ v(t)= -32t+64.
Now we know the arrow reach the maximun height when this velocity is equal to zero when t>0.
0=-32t+64 ⇒ 32t=64, split each member for 32 ⇒ =
t=2. That means after 2 sec. the arrow reach the maximum height
Multiplying binomial and polynomials can be easy as long as you follow the steps for example:
Let's say you were multiplying 3x-3 and x+2
(3x-3)(x+2)
remember FOIL
OR think about it like this(see attatchment)
3x^2 + 3x -6 is what you should get
