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horrorfan [7]
2 years ago
8

Find the nth term for this quadratic sequence

Mathematics
1 answer:
melamori03 [73]2 years ago
8 0

84

from 4 to 7 , they added 3

from 7 to 12 they added 5

from 12 to 19 they added 7

from 19 to 28 they added 9

3, 5, 7, 9.... They are simply adding odd numbers to each number. So after 9 would be 11, so you add 11 to 28 and get 39, and so on...

39 + 13= 52

52 + 15 = 67

67 + 17 = 84

84 is the ninth term, so that is your answer.  

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Is the height of an equilateral triangle the same as the sides?
Hoochie [10]
No,
 although all the sides are the same length on an equilateral triangle the height is calculated by a straight perpendicular line at the mid point of the base.

 The sides are not perpendicular with the base and are angled outwards 

7 0
3 years ago
Help me to get this ASAP
torisob [31]

Answer:

top left:1/5, 2/7, 3/5, 5/7, 31/35

top right:2/5, 2/3, 7/10, 4/5, 9/10

bottom left:9/8, 15/8, 13/6, 9/4, 15/6

bottom right:13/10, 13/6, 11/5, 25/6, 21/5

Step-by-step explanation:

8 0
3 years ago
WAIT UNTIL YOU SEE THE PICTURE HELPP WITH #5
Natalka [10]
You would do (2x+60)+6x=180... when you simplify you get 15. 
6 0
3 years ago
I need help with this pleasee
Setler [38]
76+20x
factor out 4
4 (19+5x)

so one possible dimensions of the rectangle is 4 by 19+5x
4 0
3 years ago
Read 2 more answers
I NEED HELP WITH THIS ASAP PLEASEEE!!!!
Bingel [31]

Answer:

1. Marcia

2. (I do not understand what this question is asking)

3. Marcia's estimation is closer

4. 690 people per year

Step-by-step explanation:

1. Marcia's estimation has a greater number of people because he estimated 600 people per year, while Adam estimated 2% of 12,500 (250 people per year).

2. (I do not understand what this question is asking)

3. marcias guess was 600 (600x50+12,500 = 42,500. 42,500 - 35,400 = 7,100) while Adam's guess was 250 per year (250x50+12,500 = 10,400). Therefore, Marcia's guess was closer to 35,400.

4. If Marcia adjusted her answer so that the population in Burbville was ACTUALLY going to be 34,500, she would need to adjust her estimation to 690 people per year.

Hope this helps! So sorry I couldn't understand question 2!

7 0
2 years ago
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