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Zina [86]
3 years ago
6

50 POINTS!!!From 1970 to 1990, the average cost of a new car C (in dollars) car aproximated by the model C= 30.5p^2 + 4192 where

t is the number of vears since 1970. During which year was the average cost of a new car $7242?
Mathematics
1 answer:
ehidna [41]3 years ago
4 0

Answer:

The answer is 1980

Step-by-step explanation:

can you pls choose me as brainliest

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Sales in Tiffin ties declined from 420 in last year to 360. What percentage drop is that
drek231 [11]

Answer:

  • 14.29%

Step-by-step explanation:

<h3>Given</h3>
  • Initial sales = 420
  • Later sales = 360
<h3>Solution</h3>

<u>Drop in sales </u>

  • 420 - 360 = 60

<u>Percentage drop </u>

  • 60/420*100% = 14.29%
5 0
3 years ago
NEED HELP ON MATH ASAP
RSB [31]
I think it’s A but I’m not sure
7 0
3 years ago
Find the series shown.
solmaris [256]

Answer:

C 11+13+15+17+...

Step-by-step explanation:

Consider the series

\sum\limits_{n=3}^{\infty}(2n+5)

The nth term of series is a_n=2n+5

The bottom index tells you that n starts changing from 3, so

a_3=2\cdor 3+5=11\\ \\a_4=2\cdot 4+5=13\\ \\a_5=2\cdot 5+5=15\\ \\a_6=2\cdot 6+5=17\\ \\...

Thus, the sum of all terms is

11+13+15+17+...

8 0
3 years ago
WILL GIVE 30 points a scatter plot and a possible line of best fit is shown is the line of best fit accurate for the data shown
melisa1 [442]
I would say 2. As the line of best fit is supposed to represent the average of all the data points. It's not nessecarily needed to go through every point.
4 0
3 years ago
Read 2 more answers
1. Eight people work in an office. They are paid hourly rates of 12£,15£,15£,14£,14£,13£,14£,13£
bearhunter [10]

Answer:

mean=110/8 =13.75 pounds;  median=14 pounds; mode=14 pounds; average=13.75 pounds

Step-by-step explanation:

mean=add all the numbers together to get total then divide that total by the number of amounts present 12, 15, 15, 14, 14, 13, 14, 13 =110, then 110/8=13.75 pounds

mode=arrange amounts in order (smallest to largest), then determine which amount appears more than the other amounts 12, 13, 13, 14, 14, 14, 15, 15 =14 appears the most

median=organize numbers from smallest to greatest, count how many there are, then determine which number appears in the middle of all of them 12, 13, 13, 14, 14, 14, 15, 15 = there are 8 numbers present but 14 is in the middle; answer =14

average= take total of mean, then divide it by the number of amounts that appear 110/8 =13.75

8 0
2 years ago
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