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dezoksy [38]
2 years ago
7

Find the 6th partial sum of the following geometric series. 1/2, -3/2, 9/2, -27/2

Mathematics
1 answer:
defon2 years ago
6 0

Answer:

243

Step-by-step explanation:

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Write algebraically:seven times the sum of a number and three is at most 23??<br>​
Lena [83]

Answer:

7 * x + 3 < 23

Step-by-step explanation:

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5 0
2 years ago
Use the diagram of the right triangle above and round your answer to the nearest hundredth.
Yakvenalex [24]

Answer:

value of a = 6.93 m

hence , (b.)

Step-by-step explanation:

the given triangle is a right angled triangle, so

by using trigonometry.

=》

\tan(a)   = \tan(30)  =  \frac{1}{ \sqrt{3} }

and we know,

=》

\tan(a)  =  \frac{a}{b}

so, by above values of tan ( a ) we get,

=》

\frac{a}{b}  =  \frac{1}{ \sqrt{3} }

=》

\frac{a}{12}  =  \frac{1}{ \sqrt{3} }

=》

a = \frac{12}{ \sqrt{3} }

=》

a = 4 \sqrt{3}

=

=》

a = 6.93

hence, a = 6.93 m

4 0
3 years ago
7) A coin is tossed three times, with 'heads' or 'tails' recorded after each toss. The number of possible outcomes for this expe
makkiz [27]
2^3 = 8 outcomes possible.
5 0
3 years ago
Solve the linear system by substitution 3c-2y=16<br> 5x+y=18
andrew11 [14]
It's x or c?
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3 years ago
How many solutions does this linear system have y=2x-5. -8-4y=20​
ollegr [7]

Answer:

One solution

Step-by-step explanation:

y = 2x – 5. –8x – 4y = –20. one solution: (–2.5, 0)

4 0
3 years ago
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