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galina1969 [7]
3 years ago
7

Given the arithmetic sequence 7,13,19,25..write both the explicit and recursive formulas

Mathematics
1 answer:
Bingel [31]3 years ago
5 0

Answer:

Step-by-step explanation:

a1=7

a2=13

c.d. d=13-7=6

an=a1+(n-1)d

an=7+(n-1)6=7+6n-6=6n-1

recursive formula

c.d .=an-a(n-1)

6=a_{n}-a_{n-1}

a_{n}=a_{n-1}+6

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Which expression is equivalent to 2x^2 +7x+4
rodikova [14]

Answer:

11x + 4

Step-by-step explanation:

First find 2 to the power of 2. Which is multiplying 2 by its self so 4x.

Then add the 4x to 7x which is 11x

Then since 4 doent have an x it cant be combined so thats the answer: 11x + 4

6 0
3 years ago
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dalvyx [7]

Answer:

49+0.89c

Step-by-step explanation:

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3 years ago
Quadrilateral A has side lengths 6, 9, 9, and 12. Quadrilateral B is a scaled copy of Quadrilateral A, with its shortest side of
Alekssandra [29.7K]

Answer:

Look below

Step-by-step explanation:

Ok, you got a Quadrilateral with the side lengths 6, 9, 9, 12

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Scale factor is 3

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5 0
3 years ago
What will be the value in twenty years of $1000 invested at the end of each year for the next twenty years?
denis23 [38]
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1000(1 + .08)^{20} = 4660.96

The answer is $4660.96
3 0
2 years ago
Which has the bigger surface area? Jamal's, which is 3 by 3 by 4 ft, or Andy's, which is 4 by 2 by 5 ft and why?
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Andy's surface area is bigger.

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