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2 years ago

What is the pattern of 3.5, 13, 41.5, 127,,,, and the anwser

Mathematics

2 answers:

maw [93]2 years ago

8 0

Times 3 plus 2.5 is the pattern, and the next number is 383.5

beks73 [17]2 years ago

3 0

Answer with Step-by-step explanation:

We are given a sequence as:

3.5, 13, 41.5, 127,...

we have to determine the pattern

13= 3.5×3+2.5

41.5= 13×3+2.5

127= 41.5×3+2.5

Hence, the sequence is defined as next term in the sequence is 3 times the previous term of the sequence plus 2.5

i.e. $a_{n+1} =3a_{n} +2.5\ ;\ a_{1}=3.5$

Hence, Pattern is:

$a_{n+1} =3a_{n} +2.5\ ;\ a_{1}=3.5$

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Alex is drawing rectangles with different areas on a centimeter grid . He can draw 3 different rectangles with an area of 12cm s

mojhsa [17]

Answer:

Number of rectangles could alex draw with an area of 11cm² = 1

Step-by-step explanation:

Minimum length in centimeter grid = 1 cm

Alex is drawing rectangles with different areas on a centimetre grid.He can draw 3 different rectangles with an area of 12cm²

That is

$12 = 1 \times12\\\\12=2\times6\\\\12=3 \times4$

These are the 3 different rectangles with an area of 12cm².

Now we need to find how many rectangles could alex draw with an area of 11cm².

11 = 1 x 11

So only one factorization is possible.

Number of rectangles could alex draw with an area of 11cm² = 1

6 0

1 year ago

Read 2 more answers

1. Which formula defines the sequence f(1)=2, f(2)= 6, f(3)= 10, f(4)= 14, f(5)= 18?

Natasha_Volkova [10]

Answer:

$f(n) =4 + f(n-1) \\for\ n>2$

Step-by-step explanation:

Given

$f(1)=2\\ f(2)= 6\\ f(3)= 10\\ f(4)= 14\\ f(5)= 18$

Required

Determine the formula

First, we need to solve common difference (d)

$d = f(n) - f(n-1)$

Take n as 2

$d = f(2) - f(2-1)$

$d = 6 - 2$

$d = 4$

Represent each function as a sum of the previous

$f(1) = 2$

$f(2) = 2 + 4 = f(1) + 4$

$f(3) = 6 + 4 = f(2) + 4$

$f(4) = 10 + 4 = f(3) + 4$

$f(5) = 14 + 4 = f(4) + 4$

Represent the function as $f(n)$

$f(n) =f(n-1) + 4$

Reorder

$f(n) =4 + f(n-1) \\for\ n>2$

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2 years ago

Circle two addends to add first find the sum explain your strategy 7+3+2

irga5000 [103]

7 plus 3 first than plus 2 my strategy is to look at the easier thing to add than add the second one

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1 year ago

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Solve for x:<br> 3(5x + 10) + 10 = 6x - (x + 10)

34kurt

Answer:

x= -5

Step-by-step explanation:

3(5x+10)+10=6x-(x+10)

15x+30+10=6x-x-10

15x+40=5x-10

15x-5x=-10-40

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x=-5

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1 year ago

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morpeh [17]

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1 year ago