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3 years ago

Find the 51st term of the arithmetic sequence 29, 9, -11,...

Mathematics

1 answer:

mina [271]3 years ago

5 0

Answer:

Step-by-step explanation:

arithmetic sequences can be written as

$a_n = a_1 + (n-1)d$

$29 = a_1 + (1-1)d\\29 = a_1\\9 = 29 + (2-1)d\\9 = 29 + d\\d = -20\\a_n = 29 -20 (n-1)\\a_n = 29 - 20n+20\\a_n = -20n + 49\\\\a_51 = -20(51) + 49 = -951$

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Strike441 [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Firdavs [7]

Given:

A figure of a parallelogram.

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To find:

The values of a and b.

Solution:

We know that the pairs of consecutive angles of a parallelogram are supplementary angles. It mean their sum is 180 degrees.

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Divide both sides by 17.

$b=\dfrac{170}{17}$

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Now,

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$(5b+2)^\circ=(50+2)^\circ$

$(5b+2)^\circ=52^\circ$

And,

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$2a^\circ=128^\circ$

Divide both sides by 2.

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3 years ago

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laila [671]

Answer:

Step-by-step explanation:

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2 years ago

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defon

Answer:

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Step-by-step explanation:

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2 years ago

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Inessa05 [86]

Answer:

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3 years ago