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galben [10]
3 years ago
12

Find an explicit rule for the nth term of the sequence. 2, -8, 32, -128, ...

Mathematics
2 answers:
quester [9]3 years ago
7 0
An = 2 ● 4^n+1<span> 
</span>
I think...
Alex17521 [72]3 years ago
5 0

Answer:

The correct answer is an=2*(-4)^(n-1) !

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Read 2 more answers
If sin 0(theta)=2/3 and tan 0(theta)&lt;0. What is the value of cos 0(theta)
BigorU [14]

Answer:

cos Ф = adj / hyp = √5 / 3

Step-by-step explanation:

If sin Ф is +, then Ф must be in either Quadrant 1 or Quadrant 2.

If tan Ф < 0, then Ф must be in either Quadrant 2 or Quadrant 3.  

So we conclude that Ф is in Quadrant 2.

If sin Ф = opp / hyp = 2/3, then opp = 2 and hyp = 3, and adj is found using the Pythagorean Theorem:

adj = √( 3² - 2² ) = √( 5 )

With adj = √5 and hyp = 3, cos Ф = adj / hyp = √5 / 3

7 0
2 years ago
Please answer 12.) quick ! :(
Sonja [21]

Answer:

A: $48.53

B: $58.23

Step-by-step explanation:

7% of 45.36 is 3.17.

20% of 48.53 is 9.70.

correct me if i'm wrong. hope this helps. :)

7 0
2 years ago
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