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nirvana33 [79]
3 years ago
8

Find AC, round to the nearest whole number​

Mathematics
1 answer:
xxMikexx [17]3 years ago
8 0

20

Triangles are 180 total so just add 118 and 22 then subtract it from 180 for your answer

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Write an equation for the nth term of<br> the arithmetic sequence: <br> 15,28,41 ....
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Answer:

The equation for the nth term of  the given arithmetic sequence is: \mathbf{a_n=13n+22}

Step-by-step explanation:

We need to write an equation for the nth term of  the arithmetic sequence:

15,28,41 ....

The equation for arithmetic sequence is: a_n=a_1+(n-1)d

Where a_n is the nth term, a_1 is first term and d is common difference

In the given sequence we have:

a₁ = 15

a₂ = 28

We can find common difference using the formula:

a_n=a_1+(n-1)d\\Put\: n=2, a_2=28\: and\: a_1=15\\a_2=a_1+(2-1)d\\28=15+d\\d=28-15\\d=13

So, the common difference d is 13

Now, equation for nth term will be:

a_n=a_1+(n-1)d\\Put\:a_1=15, d=13\\a_n=15+(n-1)13\\Solving:\\a_n=15+13n-13\\a_n=13n+2

So, the equation for the nth term of  the given arithmetic sequence is: \mathbf{a_n=13n+22}

where n=1,2,3..

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3 years ago
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Step-by-step explanation:

we know 2x3 = 6 soo just add 2 zeros = 600

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