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klemol [59]
2 years ago
14

The recursive formula for a geometric sequence is an = 2an – 1 with an initial value of a1 = 1/8. What is the explicit formula f

or the sequence?
Mathematics
1 answer:
IrinaK [193]2 years ago
6 0

Answer:

Answer:The explicit rule for this sequence:

Step-by-step explanation:

Where  = n'th term in a sequence

The value 'r' is geometric mean is given as:

r = common ratio

The explicit rule for this sequence:

mark brainlest plz

Step-by-step explanation:

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Which expression can be expanded using the binomial theorem?
kirill [66]

Answer:

The third choice:  (x² - 1)³

Step-by-step explanation:

That is the only expression that is a binomial.  Binomial means "two numbers".  For this expression, x² is one number, and -1 is the other.  Choice 1 is a monomial (one number) and choices 2 and 4 are trinomials (three numbers)

7 0
3 years ago
Draw a line from each rectangular prism to its matching group of face shapes
IrinaK [193]
Can you put more information into this question
6 0
3 years ago
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All 231 students in math club went on a field trip some rode in vans that held 7 people and some rode on buses that held 25 peop
MariettaO [177]

Answer:

8 vans

7 buses

Step-by-step explanation:

Let there be "b" buses

and "v" vans

Since 7 people is the capacity of vans, the total capacity is

7v

Also, since 25 people is the capacity of 1 bus, the total capacity is

25b

In total 231 people, so we can write our first equation as:

7v + 25b = 231

Now, we know there are 15 vehicles (bus + vans) in total, so we can write our 2nd equation as:

v + b = 15

Now, we solve for v and b. Let's solve the 2nd equation for v and substitute that into 1st and solve for b first:

v + b = 15

v = 15 - b

Now,

7v + 25b = 231\\7(15-b) + 25b = 231\\105-7b+25b=231\\18b=126\\b=7

Hence, there are 7 buses

Since 15 vehicles in total, the number of vans is:

15 - 7 = 8 vans

So,

8 vans

7 buses

8 0
3 years ago
Find dy/dx for (y^2/x) = 18 by implicit differentiation
Natasha2012 [34]

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Answer:

  dy/dx = y/(2x)

Step-by-step explanation:

The product formula can be used, along with the power rule.

  d(uv) = du·v +u·dv

__

  d(y^2/x) = d(18)

  2y·dy/x -y^2/x^2·dx = 0

  2x·dy -y·dx = 0 . . . . . . . . multiply by x^2/y

  dy/dx = y/(2x) . . . . . . . . add y·dx, divide by 2x·dx

6 0
2 years ago
Xavier Designs has the logo shown below on their office door. The logo has two smaller congruent triangles that are similar to t
Alexus [3.1K]

Answer:

183.375 in2

Step-by-step explanation:

I did it on study island.

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3 years ago
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