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nataly862011 [7]
4 years ago
11

Find the specified term in each sequence using the Geometric Explicit Formula

Mathematics
1 answer:
Nana76 [90]4 years ago
7 0

Answer:

  a7 = 4

Step-by-step explanation:

r = a2/a1 = -128/256 = -1/2

an = a1·r^(n-1)

a7 = 256·(-1/2)^(7-1) = 256·(1/64)

a7 = 4

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4 less than five times a number is -11:
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Identify each of the following as rational or irrational.
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Step-by-step explanation:

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2 years ago
Subtract: 6/2x^+8x - x/4x^+12x-16 = 6/2x(x+4) - x/4(x+4)(x-1) = 6•2(x-1)/2x(x+4)•2(x-1) - x•x/4(x+4)(x-1)•x
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