3 years ago

Wich expression is equivalent the the expression shown

Mathematics

2 answers:

elena-s [515]3 years ago

5 0

Answer:

5^8 Hope this helps!

Step-by-step explanation:

Anton [14]3 years ago

5 0

5^8. Just multiply the exponents when they're like that

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What is the sum of the series?

marta [7]

$t_n = a r^{n-1}$

a = 4, r = 3, $t_n = 8748$

No rounding needed? It's a whole number

$8748 = 4 \cdot 3^{n-1} \\
\\ \displaystyle\frac{8748}{4} = 3^{n-1} \\ \\ 
2187 = 3^{n-1} \\ \\
\log_3(2187) = n - 1 \implies n = \log_3(2187) + 1 \implies \\ \\ \\
n = \frac{\ln 2187}{\ln 3} + 1 = 7 + 1 = 8$

$\displaystyle S_n=\frac{a(1-r^n)}{1-r} \implies S_8 =\displaystyle \frac{4(1 - 3^8)}{1 - 3} \\ \\ \\
= 13120$

Sum is 13120

8 0

3 years ago

I’m in a hurry!!plz help me with question 9 and 10

Firdavs [7]

9. Obtuse triangle
10. 2736(i think)

I hope this helped

6 0

3 years ago

Please help me with these questions I’m not very good with This topic

Levart [38]

Use an online converter that you may search for on google. com, and learn the method too

3 0

3 years ago