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Ksju [112]
3 years ago
12

Write an e explicit formula for an, the nth term of the sequence 22, 19, 16, ...​

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer:

a_{n} = 22 + (-3)(n - 1)

Step-by-step explanation:

The first term is 22. It looks like each term after that is the term before, plus a negative 3.

a-sub-one  = 22

common difference = d= -3

Formula for a_{n}:

a_{n} = 22 + (-3)(n - 1) = 25 - 3n

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ValentinkaMS [17]

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3 years ago
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the length of a rectagle is 5 in longer than its width. if the perimeter of the rectangle is 56 in, find its length and width
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Let the width of the rectangle = x

As length is 5 inches longer than width, we have to add 5 to width

Length = x + 5

Perimeter of ractangle = 56 in

2* (length + width) = 56

2*( x + 5 + x) = 56

2* (2x + 5)    = 56

Use distributive property: a*(b +c) =(a*b) + (a * c)

2*2x + 2*5   = 56

4x  + 10 = 56

Subtract 10 from both sides

4x = 56- 10

4x = 46

Divide both sides by 4

x = 46/4

x = 11.5

Width = 11.5 in

length = 11.5 + 5

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3 0
2 years ago
Please answer the question
worty [1.4K]

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3 years ago
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Someone help asap math 10
pashok25 [27]

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An Native American tepee is a conical tent. Find the number of cubic feet of air in a teepee 10 ft. in diameter and 12 ft. high.
marta [7]
For this case what you should know is that by definition the volume of the cone is given by:
 V = ((pi) * (r ^ 2) * (h)) / (3)
 Remembering that:
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 V = ((pi) * ((d / 2) ^ 2) * (h)) / (3)
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 V = 314.16 ft ^ 3
 Answer:
 V = 314.16 ft ^ 3
 The nearest option is:
 300 cu. ft
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