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Evgen [1.6K]
3 years ago
14

I need help with this question.

Mathematics
1 answer:
olga_2 [115]3 years ago
7 0
Cross multiply
4x - 1 = 21
4x = 22
  x = 22/4
  x = 11/2

answer
D. 11/2
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A parallelogram is a quadrilateral with two pairs of parallel lines. Each two opposite sides are equal and none of the angles is right.
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antiseptic1488 [7]
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nataly862011 [7]
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madreJ [45]

Answer:

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8 0
3 years ago
8th term of 1/4,1/8,1/16,1/32
sukhopar [10]
a_1=\dfrac{1}{4};\ a_2=\dfrac{1}{8};\ a_3=\dfrac{1}{16};\ a_4=\dfrac{1}{32};...\\\\it's\ a\ geometric\ sequence\ where\ a_1=\dfrac{1}{4}\ and\ r=\dfrac{1}{8}:\dfrac{1}{4}=\dfrac{1}{2}\\\\a_n=a_1r^{n-1}\\\\n=8\\\\a_8=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^{7-1}=\dfrac{1}{4}\cdot\left(\dfrac{1}{2}\right)^6=\dfrac{1}{4}\cdot\dfrac{1}{64}=\dfrac{1}{256}
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