3 years ago

Which statement about the lines below is true? 4y = -16 and 3x = 27

Mathematics

1 answer:

Pani-rosa [81]3 years ago

5 0

They can be simplified

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3 years ago

Please answer this ASAP

Amanda [17]

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Step-by-step explanation:

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3 years ago

What’s is the sum of the series?

STALIN [3.7K]

Answer:

Step-by-step explanation:

$\sum\limits_{k=1}^4(2k^2-4)\to a_k=2k^2-4\\\\for\ k=1:\\\\a_1=2(1)^2-4=2(1)-4=2-4=-2\\\\for\ k=2:\\\\a_2=2(2)^2-4=2(4)-4=8-4=4\\\\for\ k=3:\\\\a_3=2(3)^2-4=2(9)-4=18-4=14\\\\for\ k=4:\\\\a_4=2(4)^2-4=2(16)-4=32-4=28\\\\\sum\limits_{k=1}^4(2k^2-4)=-2+4+14+28=44$