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lord [1]
3 years ago
14

Can some one help please i don’t get it

Mathematics
2 answers:
Lemur [1.5K]3 years ago
7 0
It is the first one hope this helped
ella [17]3 years ago
4 0
I think the first one

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What is the answer i need help
ss7ja [257]

Answer:

27

Step-by-step explanation:

 add 5+5+7+6+4

8 0
3 years ago
The following series are geometric series or a sum of two geometric series. Determine whether each series converges or not. For
Sergeeva-Olga [200]

Answer:

Required solution gives series (a) divergent, (b) convergent, (c) divergent.

Step-by-step explanation:

(a) Given,

\sum_{n\to 0}^{\infty}\frac{2^n}{9^{2n}+1}

To applying limit comparison test, let  a_n=\frac{2^n}{9^{2n}+1} and b_n=\frac{9^{2n}}{2^n}. Then,

\lim_{n\to\infty} \frac{a_n}{b_n}=\lim_{n\to\infty}(1+\frac{1}{9^{2n}})=1>0

Because of the existance of limit and the series  \frac{9^{2n}}{2^n} is divergent since \frac{9^{2n}}{2^n}=(\frac{9^2}{2})^n where \frac{81}{2}>1, given series is divergent.  

(b) Given,

\sum_{n\to 1}^{\infty}(\frac{7^n}{7^n+4})

Again to apply limit comparison test let a_n=\frac{7^n}{7^n+4} and b_n=\frac{1}{7^n} we get,

\lim_{n\to \infty}\frac{a_n}{b_n}=\frac{1}{7^n+4}=0

Since \lim_{n\to \infty} \frac{1}{7^n}=0 is convergent, by comparison test, given series is convergent.

(c) Given,

\sum_{n\to 1}^{\infty}\frac{5^n+2^n}{6^n}= \sum_{n\to 1}^{\infty}(\frac{5}{6})^n+\sum_{n\to 1}^{\infty}(\frac{1}{3})^n . Now applying Cauchy Root test on last two series, we will get,

  • \lim_{n\to \infty}|(\frac{5}{6})^n|^{\frac{1}{n}}=\frac{5}{6}=L_1
  • \lim_{n\to \infty}|(\frac{1}{3})^n|^{\frac{1}{n}}=\frac{1}{3}=L_2

Therefore,

\lim_{n\to \infty}\frac{5^n+2^n}{6^n}=L_1+L_2=1.16>1

Hence by Cauchy root test given series is divergent.

5 0
4 years ago
Members of a soccer team raised $2303 to go to a tournament. They rented a bus for
yKpoI14uk [10]

Answer: I believe this answer would be around 12 because I'm pretty sure you would have to divide but if you divide them you can get the right answer. or even multiple the number until you get to 776.50!

Step-by-step explanation: ::::::::::))))))))))

7 0
3 years ago
How do you solve this question<br><br> /
Alinara [238K]

Answer:

5/18

Step-by-step explanation:

Parentheses next to each other mean to multiply. So, this problem means you need to multiply -4/9 and -5/8. To multiply fractions, you just have to multiply across. To make it easier to understand what I mean...

<u>-4 </u>x <u>-5</u>  = <u>20</u> (when you multiply two negatives, it makes a positive)

9 x 8   = 72

20/72 simplifies to 5/18.

Hope this helps!! Have a wonderful day C:

8 0
3 years ago
How much feet are in 760yards
Triss [41]

2280 Ft there are 3 feet in a yard

8 0
3 years ago
Read 2 more answers
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