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lisabon 2012 [21]
3 years ago
13

Write the first five terms of the arithmetic sequence.

Mathematics
1 answer:
hjlf3 years ago
7 0

Answer:

a1 = 4

a2= -2

a3 = -8

a4= -14

a5= -20

Step-by-step explanation:

a12= a1 + 11d

-62 = 4 + 11d

-62-4 = 11d

-66= 11d

d = \frac{-66}{11}\\

  = -6

a1 = 4

a2 = 4 - 6 = -2

a3 = 4 - (6×2) = -8

a4 = 4 - (6×3) = -14

a5 = 4 - (6×4) = -20

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Answer:

The hippopotamus weighs 6,993 pounds more than the monkey.

Step-by-step explanation:

7,000 x 1/1000 = 7,000/1,000 = 7

7,000 - 7 = 6,993

6 0
3 years ago
Which function is a quadratic function? a(x) = –2x^3 + 2x – 6 b(x) = 5x^3 + 8x^2 + 3 c(x) = –8x^2 + 3x – 5 d(x) = 6x^4 + 2x – 3
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Answer:

c(x) = –8x^2 + 3x – 5 is a quadratic

Step-by-step explanation:

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a(x) = -2x^3 is not a quadratic because of that exponent 3; in a quadratic, the highest power is always 2.

b(x) = 5x^3 + 8x^2 + 3 is not a quadratic for the same reason that a(x) is not a quadratic.

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5 0
4 years ago
suppose that 11 inches of wire cost 66 cents at the same rate how much (in cents) will 28 inches of wire cost ​
zvonat [6]

Answer:

168 cents or = $1.68

Step-by-step explanation:

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28 inches of wire cost  x? cents

x = 28 * 66 / 11 = 168 cents or = $1.68

Answer

168 cents or = $1.68

3 0
3 years ago
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Answer:

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