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gregori [183]
3 years ago
14

Use the given nth term formula to compute the first five terms of the sequence. an = 8n^2 − 4n

Mathematics
1 answer:
Ghella [55]3 years ago
7 0

Answer:

0,4,24,60,112

Step-by-step explanation:

an = 8n² − 4n

first 5 terms is a0, a1, a2, a3 and a4

for a0, n = 0,

a0 = 8(0)² − 4(0) = 0

for a1, n = 1,

a1 = 8(1)² − 4(1) = 8-4 = 4

for a2, n = 2,

a2 = 8(2)² − 4(2) = 8(4)- 4(2) = 32-8 = 24

for a3, n = 3,

a3 = 8(3)² − 4(3) = 8(9) − 4(3) = 72 - 12 = 60

for a4, n = 4,

a4 = 8(4)² − 4(4) = 8(16) − 4(4) = 128 - 16 = 112

hence the first 5 terms are

0,4,24,60,112

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The simplification of a³ - 1000b³ and 64a³ - 125b³ is (a - 10b) × (a² + 10ab + 100b²) and 4a - 5b) • (16a² + 20ab + 25b²) respectively.

<h3>Simplification</h3>

Question 1: a³ - 1000b³

a³ - b³

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So,

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So,

(4a - 5b) • (16a² + 20ab + 25b²)

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brainly.com/question/723406

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8 0
2 years ago
Evaluate 33/5 - 1/10
azamat

Answer:

\large\boxed{\dfrac{13}{2}=6\dfrac{1}{2}=6.5}

Step-by-step explanation:

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We can subtract these fractions now.

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Step-by-step explanation:

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