Answer:
C
Step-by-step explanation:
The standard form for the explicit formula of a geometric sequence is given by:
Where a is the initial term, r is the common ratio, and n is the nth term.
Our sequence is: 8, 4, 2, 1...
So, we can see that our initial term or a is 8.
Each subsequent term is half of the previous one. So, our common ratio is 1/2.
Let's substitute 8 for a and 1/2 for r to acquire:
So, our answer is C.
And we're done!
If you looks at the well drawn picture that I drew, you'll notice that we notice that we can use the trigonometric ratio
tan; in this case:
tan58=
Solving this, we get:
x=
Which gets us that
x=6.25 (approximately)
(It really wasn't that great of a picture but still :D)
:)
It should stay the same bc even if you flip it and reflect it it shouldn't effect the area of it.
3w + 8 - w = 4w - 2(w - 4)
is an identity
3w-w + 8 = 4w - 2w + 8
2w + 8 = 2w + 8
2w - 2w = 8 - 8
0 = 0
zero equal to zero implies that any value of w satisfies the statement 3w + 8 - w = 4w - 2(w - 4) hence it is an identity.
Its D
Because the rate of change is 1.5 and 1.5x10 is 15
