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erma4kov [3.2K]
3 years ago
13

The sum of 5 and a number x

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
4 0
The sum of 5 and a number x
Answer: 5 + x
Naya [18.7K]3 years ago
3 0
5+x that is  the answer
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Converges or diverges, find the sum. 3 -3/4 +3/16 -3/64.
Gnesinka [82]
We know the terms in this geometric sequence are 3, -3/4, 3/16 and so on.

now.. what's the "r" or common ratio?  well, in a geometric sequence, to get the next term's value you multiply by "r", therefore, if you divide any of those values, by the value before it, the quotient will be, yes, you guessed it, "r".

namely say a, a*b.... now (a*b)/a is just b, the quotient is the value you used as multiplier.

\bf -\cfrac{3}{4}\div 3\implies -\cfrac{3}{4}\div \cfrac{3}{1}\implies -\cfrac{3}{4}\cdot \cfrac{1}{3}\implies -\cfrac{1}{4}

any other two pair of values will spit out the same "r".

now, the Sum of a geometric sequence reaches a limit or point, that is converges, only if the value of "r" is a fraction and more than -1 or less than 1, negative or positive.

or in short, if | r | < 1.

now, in this case, -1/4 is indeed more than -1 and less than 0, therefore, the Sum of the sequence is convergent, it meets at a limit.
6 0
3 years ago
What is x? 3x + 4 = 4x
e-lub [12.9K]

Answer:

x = 4

Step-by-step explanation:

3 0
3 years ago
How do i simplify this<br> 3xy (5x2 + 2xy + 3y2)
kirza4 [7]

Answer:

15x^3y+6x^2y^2+9xy^3

3 0
3 years ago
How many real solutions are there for the quadratic equation below?
olga55 [171]

Answer:

2 solutions

Step-by-step explanation:

2 solutions

3/4 - i\sqrt{47}/4

3/4 + i\sqrt{47}/4

7 0
2 years ago
What percent of 80 is 28
serious [3.7K]

Answer:

35%

Step-by-step explanation:

easy way to remember: \frac{28}{80} *1 00

= 0.35 *100

= 35%

5 0
3 years ago
Read 2 more answers
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