3 years ago

How many unique ways are there to arrange the letters in the word SONG?

Mathematics

1 answer:

-BARSIC- [3]3 years ago

6 0

24 I believe would be the correct answer.

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In the given right triangle, AX is the altitude. If CX-9 and AX - 9, what is the length of BC? "Note: Figure not drawn to scale"

kenny6666 [7]

Answer:

Step-by-step explanation:

I’m pretty sure the answer is C

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2 years ago

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If there are 6 hours in a school day, 5 school days in a week, 4 school weeks in a month and 9 months in a school year, how many

MA_775_DIABLO [31]

1080, because 6x5= 30 30x4= 120 120x9= 1080

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2 years ago

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0.8 >0.78<br> True or false?

ElenaW [278]

Answer:

true

Step-by-step explanation:

.8 is closer to 1 than .78 is

8 0

2 years ago

Could someone help please

leonid [27]

Answer: B

<u>Step-by-step explanation:</u>

There are 26 letters in the alphabet. D is the 4th letter, so there are 26 - 4 = 22 letters after D.

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3 years ago

What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

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2 years ago