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3 years ago

15

What’s the value of x?

2 answers:

Phantasy [73]3 years ago

4 0

110°

A=70° so B=110° because A and B are supplementary. Therefore x=110° too.

loris [4]3 years ago

3 0

Answer:

wala nashang value sayu dahil may iba nasha

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2 years ago

in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

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$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

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Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

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Case 4: $n-1=7$ and $d=3$ . But

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3 years ago

Read 2 more answers

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Andrei [34K]

ANSWER:

Circumference= 37.7

Area= 113.1

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2 years ago