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egoroff_w [7]
3 years ago
6

Find the sum of the first 5 terms of a GP 1/7 + 2/7 + 4/7​

Mathematics
1 answer:
Stels [109]3 years ago
7 0

Answer:

2 is the value of the infinite sum.

Step-by-step explanation:

3/2 = 2 - 1/2 7/4 = 2 - 1/4 15/8 = 2 - 1/8 and so on; the sum is 2

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Solve.<br> -317 - 221 - (-354)<br><br> A. 892<br> B. -892<br> C. 184<br> D. -184
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3 years ago
For what values of a are the following expressions true?/a+5/=-5-a
katovenus [111]

Explanation:

The expression is given below as

|a+5|=-5-a

Concept:

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\begin{gathered} if|u|=a,a>0 \\ then,u=a,u=-a \end{gathered}

By applying the concept, we will have

\begin{gathered} \lvert a+5\rvert=-5-a \\ a+5=-5-a,a+5=5+a \\ a+a=-5-5,a-a=5-5 \\ 2a=-10,0=0 \\ \frac{2a}{2}=\frac{-10}{2},0=0 \\ a=-5,0=0 \end{gathered}

Hence,

The final answer is

a\leq-5

5 0
11 months ago
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