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matrenka [14]
3 years ago
6

Which of these expressions is equivalent to (3x − 4y) − (−5x + y)

Mathematics
1 answer:
stellarik [79]3 years ago
5 0

Answer:

8x-5y

Step-by-step explanation:

(3x − 4y) − (−5x + y)

3x-4y+5x-y

8x-5y

8x-5y is the answer

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In Exercises 13-16, estimate the slope of the line.
mrs_skeptik [129]

Answer:

Hi there!

The answer for number 13 is 2.

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Then I used the (y1-y)/(x1-x) equation to get 2.

The answer for number 14 is 2.

I picked two coordinates: (1,0) and (2,2)

Then I used the  (y1-y)/(x1-x) equation to get 2.

6 0
3 years ago
Determine the time necessary for P dollars to double when it is invested at interest rate r compounded annually, monthly, daily,
kipiarov [429]

9514 1404 393

Answer:

  • annually: 9.01 years
  • monthly: 8.69 years
  • daily: 8.67 years
  • continuously: 8.66 years

Step-by-step explanation:

For interest compounded in discrete intervals, the formula is ...

  A = P(1 +r/n)^(nt)

We want to find t for P=1 and A=2, so we have ...

  2 = (1 +r/n)^(nt)

  ln(2) = nt·ln(1+r/n)

  t = ln(2)/(n·ln(1+r/n))

A table of values for r=0.08 is attached.

__

For continuous compounding, the formula is ...

  A = Pe^(rt)

  t = ln(A/P)/r = ln(2)/0.08 ≈ 8.66434 . . . . years

__

  • annually: 9.01 years
  • monthly: 8.69 years
  • daily: 8.67 years
  • continuously: 8.66 years

5 0
2 years ago
All of the following are equivalent except _____.
juin [17]

Answer:

For number 2 the answer is 8/6=20/15

The answer for 3 is 12:26

Step-by-step explanation:

5 0
3 years ago
Which equation can be used to determine the distance between the origin and (–2, –4)?
Andreyy89
-2+(-4) i think :)))
3 0
3 years ago
Read 2 more answers
Plz plz plzzzz help plz !!!
bixtya [17]
I think the last two are correct.
Hope it helps

8 0
3 years ago
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