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Deffense [45]
3 years ago
7

3/4+n=-5/2 whats the answer for n

Mathematics
2 answers:
hodyreva [135]3 years ago
5 0
The answer to your question is -13/4
dmitriy555 [2]3 years ago
3 0
Your answer would be -13/4.
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A Geometric series has a first term of 4 and a common ratio of 6. what formula is equivalent to the partial sum of the first n t
IRISSAK [1]
\bf \qquad \qquad \textit{sum of a finite geometric sequence}
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S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
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a_1=4\\
r=6
\end{cases}
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S_n=4\left( \cfrac{1-6^n}{1-6} \right)\implies S_n=4\left( \cfrac{1-6^n}{-5} \right)
6 0
3 years ago
Megan is trying to remember her password for her computer. All she can remember is that it is 2 letters followed by 3 digits.
Vlada [557]
I think B. 1,676 
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6 0
3 years ago
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Xander and Pedro are at an ice cream social.for every scoop of ice cream,Xander uses 1/8 cup of fruit topping.Pedro uses one mor
Kaylis [27]

Answer: 2 and 3 scoops

Step-by-step explanation:

i guessed :/

7 0
3 years ago
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The manager of a baseball team has 15 players to choose from for his 9 person batting order
Masteriza [31]
Given the question:
The manager of a baseball team has 15 players to choose from for his 9-person batting order. How many different ways can he arrange the players in the lineup?
5,005    362,880    3,603,600    1,816,214,400

The number of was in which a smaller group is choosing from a bigger group is given by the bigger number combination the smaller number.
^nC_r= \frac{n!}{(n-r)!r!}
Here, we want to choose a 9-person batting order from a team of 15 players. This is given by:
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6 0
3 years ago
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A book seller gains 30% on the cost price by selling a book for $130.Calculate the cost price of the book.​
zlopas [31]

Answer:

Let the cost price be x

  • Selling price, S.P. = 130
  • Gain % = 30%

\rm{C.P. = \dfrac{S.P. \times 100}{100+ gain \% }}

\rm{C.P. = \dfrac{130 \times 100}{100+30}}

\rm{ C.P. = \dfrac{130}{30} }

\large{\boxed{\rm{ C.P. =  \dfrac{13}{3}}}}

6 0
2 years ago
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