Math

posted by .

the design below grows each day, as shown. if the pattern continues to grow like this, how many tiles will there be in the design on the tenth day? on the fiftieth day?

Day 1 1 tile
Day 2 5 tiles
Day 3 13 tiles

• Math -

1+4(n-1) where n is the day number
on day 10
1+4(10-1)=37
on day fifty
1+4(50-1)=197

• Math -

Day 3 does not fit: 1+4*2 = 9

Since the difference is changing by 4 each day, we will have a quadratic:

Day n: 2n^2 - 2n + 1

• Math -

What do you mean by the ^ in your equation Steve? I don't really understand the 2n^2-2n+1. I did figure out it was a quadratic equation, and actually happened to figure out the entire problem until I noticed it said "Write a description or formula that allows me to figure out the number of tiles for any day number?"

• Math -

Oh, ok, do you mean to cube the first number by the 2nd, get back to me... Thnx

• Math -

Steve is wrong!!! D:

Similar Questions

1. Math(Algebra2)

Craftsmen install 500 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2400 sq ft if ceramic tile …
2. math

Gino just opened a pizza restaurant. He had 1 customer the first day, 3 the second day, 6 the third day, and 10 the fourth day. a. If this pattern continues, how many customers should gino expect on the seventh day?
3. Math

Tile Pattern... A design starts with 1 tile and it continues to grow the next day to 4 tiles and on the third day there is 13 tiles. How many tiles will there be on the 10th day?
4. Math

In a financial deal, you are promised \$800 the first day and each day after that you will receive 45% of the previous day's amount. When one day's amount drops below \$1, you stop getting paid from that day on. What day is the first …
5. Math

Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile …
6. Math

Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile …
7. biology

time day 0 day 1 day 3 day 4 day 5 day 7 count blank 7 10 5 14 9 8 low 45&49 64&70 62&69 75&79 80&82 68&72 high 45&49 72&78 100&112 180&195 250&267 208&226 Calculate the cell yield for the following data that were obtained using a …
8. Algebra

Stella is recording temperatures every day for 5 days. On the first day, Stella recorded a temperature of 0 degrees Farenheit. A. On the second day, the temperature was 3 degrees Fahrenheit above the temperature on the first day. What …
9. CS

what would the output of this code be? int startDay = 6; int day = 22; switch(startDay) { case 5: day += 1; case 6: day = day + 1; case 0: ++day; case 1: day++; case 2: day += 1; default: day = day + 1; } printf("day: %d\n", day);
10. LANGUAGE ARTS

Please help with question below What sort of day does Emily Dickinson describe in "the Sky Is Low, the Clouds Are Mean"?

More Similar Questions