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Marta_Voda [28]
3 years ago
11

What is the explicit formula for this geometric sequence

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0

Answer:

a(n) = a(1)*(1/4)^(n - 1)

Step-by-step explanation:

The first four terms of this sequence are 64, 16, 4, 1.

Let the common ratio be r.  Then 64r = 16, and r = 1/4.

The first term is  64.

The general term is then

a(n) = a(1)*(1/4)^(n - 1)

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In both cases,

AB^2=AD^2

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So we have

10.

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(omit the negative solution because that would make at least one of AB or AD have negative length)

11.

(4x^2-18x-10)^2=(x^2+x+4)^2

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7 0
3 years ago
Expand and combine like terms.<br> (7b^5 – b^2)^2
KiRa [710]
I got 49b^10-14b^7+b^4
7 0
3 years ago
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Pie
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6 0
3 years ago
How do u do this problem
atroni [7]
Alexis and 3 friends buy:
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First we would multiply all the food prices by 4, since there is 4 people in total.
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1 x 4 = $4
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Now we're adding all the prices together. 
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At this point, we're going to make the expression, using all the steps that we did.
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We used parenthesis to show that those expressions need to be done first before anything else.

This is how we make an expression and we find the total answer.

The expression would be: ( 4 x 4 ) + ( 1 x 4 ) + ( 2 x 4 )
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Hope this helps!~
5 0
3 years ago
Find the Value of each variable that makes the equation true.
alexdok [17]
1.) 0
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Please comment for concerns please likeb
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