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xeze [42]
3 years ago
7

The recursive rule for a geometric sequence is given.

Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0

Answer:

an = 2/5 * (5) ^ (n-1)

Step-by-step explanation:

The common ratio is 5

(That is the number we multiply by)

The formula is

an = a1 (r) ^ (n-1)

an = 2/5 * (5) ^ (n-1)

fomenos3 years ago
6 0

Answer:

a_n= \frac{2}{5} (5)^{n-1}

Step-by-step explanation:

The recursive rule for a geometric sequence is given.

a1= 2/5; an=  5a^{n-1}

a1 is the first term = 2/5

USe the recirsive rule. compare an=  ra^{n-1}, where 'r' is the common ratio with the given recursive formula

r= 5, common ratio is 5

General explicit rule

a_n= a_1(r)^{n-1}

a1=2/5  and r= 5

So explicit rule becomes

a_n= \frac{2}{5} (5)^{n-1}

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anygoal [31]
Hi there!

Since the triangle is equilateral, all of its sides are congruent. This means that to solve, we can set the two given equations equal to each other.

2(x - 8) = 1/2x + 8
2x - 16 = 1/2x + 8
1.5x - 16 = 8
1.5x = 24
x = 16

Now that we know what x is, we can plug that in for x in the equation for ZY.

2(16 - 8) = ZY
ZY = 2(8)
ZY = 16 units

And here is the work to show that XZ is also 16.

1/2(16) + 8 = XZ
XZ = 8 + 8
XZ = 16

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
5 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
SIZIF [17.4K]
C = 4M + 5
4M = C - 5
  M = (C - 5)/4

answer is D. Last one.
6 0
4 years ago
The blueprint for a new swimming pool uses the scale 3/4
beks73 [17]

Answer:

3 in wide by 4.5 in long.

Step-by-step explanation:

3/4=0.75

I divided the given dimensions by two, so I could multiply .75 by the sets of twos instead of dividing 3/4 by two and multiplying that by 12 and 8.

.74 x 4 = 3

.75 x 6 = 4.5

7 0
4 years ago
My homework lesson 2 order of operations
djyliett [7]
Not sure what your question is but if you are learning the order of operations you can use the phrase "Please Excuse My Dear Aunt Sally"....

Parentheses
Exponents
Multiplication from left to right
Division from left to right
Addition from left to right
Subtraction from left to right

Hope this help :)
3 0
3 years ago
HELP PLEASE<br><br> Combine like terms to create an equivalent expression.
k0ka [10]
SOLUTION:

= ( 7 / 8 )m + 9 / 10 - 2m - 3 / 5

= - ( 9 / 8 )m + 3 / 10
6 0
4 years ago
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