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DedPeter [7]
3 years ago
6

Estimate.Then find the differences and write it in simplest form.

Mathematics
1 answer:
Rama09 [41]3 years ago
7 0
D . internal............
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Write as a product 27a^3−(a−b)^3
jarptica [38.1K]

Answer:

  (2a +b)·(13a^2 -5ab +b^2)

Step-by-step explanation:

The factorization of the difference of cubes is a standard form:

  (p -q)^3 = (p -q)(p^2 +pq +q^2)

Here, you have ...

  • p = 3a
  • q = (a-b)

so the factorization is ...

  (3a -(a -b))·((3a)^2 +(3a)(a -b) +(a -b)^2) . . . . substitute for p and q

  = (2a +b)·(9a^2 +3a^2 -3ab +a^2 -2ab +b^2) . . . . simplify a bit

  = (2a +b)·(13a^2 -5ab +b^2) . . . . . . collect terms

6 0
3 years ago
Jace and Lianna each baked a loaf of bread. jace cut his loaf into halves and lianna cut her loaf into thirds. Jace says they ca
Viktor [21]

Answer:

Jace is correct they can use their loaves of bread to show 1/2 is less than 1/3. Because they have 2 loaves of bread

7 0
2 years ago
Please help me simplify this! I have no idea how to solve this question! Thank you if you do!
rjkz [21]
You go it right it's the first one
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Luis has four times as much dime than quaters. total is $6.75
baherus [9]

What you will do is 6.75 times 4 and the answer you should get is 27

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It takes the teacher 39 minutes to grade 3 book reports. At this rate, how long will it take the teacher to grade 120 book repor
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it will take 1560 minutes

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