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nadezda [96]
3 years ago
15

The equation C(l) = l3 – l2 + l + 2.5 models the cost to mail a package as a function of its length. To the nearest quarter inch

, approximately what is the length of a package that costs $11.00 to mail? Enter your answer as a decimal.
inches

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0

Answer: 2.25

Step-by-step explanation:

Anettt [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Set the cost equation C(l) = l3 – l2 + l + 2.5 equal to $11.00 and solve for l:

                                     C(l) = 2l + 2.5 = $11, or

                                               2l = 8.5, or l = length = 4.25 inches

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Explain why 256 + 4 is equivalent to (200 + 4) + (40+4) + (164)​
laiz [17]

The expression 256 + 4 is equivalent to (200 + 4) + (40+4) + (16+4) according to distributive and commutative property of addition.

Given the expression 256 + 4. This can be solved using the partial sum expressed as:

256 + 4

256 + 4

= (200 + 40 + 16) + 4

According to the commutative property, A+B = B+A

The arrangement does not affect the result. Hence;

  • (200 + 40 + 16) + 4 = 4 +  (200 + 40 + 16)

Using the distributive law;

  • 4 +(200 + 40 + 16) = (200 + 4) + (40 + 4) + (16 + 4)

Hence the expression 256 + 4 is equivalent to (200 + 4) + (40+4) + (16+4) according to distributive and commutative property of addition.

​Learn more on  partial sum  here: brainly.com/question/6958503

4 0
3 years ago
Wesley is traveling from California to Utah. His trip covers a distance of 673.1 miles. For the first 3 hours, he travels at an
mr Goodwill [35]
I'm not sure what you are asking if your looking for the hours it should take him to get there it's about 10 hours adding the 2 and 3 he already drove... 5 left to go.. hope that helps
4 0
3 years ago
HELP Combining like terms solve all please :) c
In-s [12.5K]

Answer:

11. x = -16

12. k = 6

13. x = -19

14. x = -6

15. x = -20

16. Combining like terms isn't to be used on this type of problem. I'm sorry, can you guess on this one?

17. x = 19

18. n = -10

19. b = 11

20. n = 4

21. r = -6

22. n = -4

Again super sorry about question 16 :(

6 0
3 years ago
Read 2 more answers
Help me please!!!!!!!!!!!!!!!!!!!!!!!
strojnjashka [21]

Answer:

  1. 21 , 39
  2. 13 , 31
  3. 49 , 80
  4. 248 , 498
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8 0
3 years ago
Read 2 more answers
3. Combine terms: 123a + 26b -4b – 16a.
m_a_m_a [10]

Answer:C) -4a+22b because u add 12a ➕-16a and u get negative 4 then u mines 26b-4b and u get 22

Step-by-step explanation:

6 0
3 years ago
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