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hammer [34]
3 years ago
7

5x² - 4x + 7 - (2x² - 2x - 3) resolver paso a paso xfas

Mathematics
1 answer:
DaniilM [7]3 years ago
5 0
Simplified into 5x^-2x^2 +2x+8
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A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank?
Sveta_85 [38]
The answer is 21 quarters
6 0
3 years ago
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Bag C is four times lighter than Bag A. Bag B is twice as heavy as Bag C. How much heavier is Bag A than Bag B ?​
LiRa [457]

Answer:

Step-by-step explanation:

Current Weight         Weight after adding Marbles

Giulio:    2x                          2x + 10                    

Jim:         x                             x + 5

You didn't post the options so hopefully you can determine the answer based on the info I provided above.

8 0
2 years ago
Which is an example of continuous data? A) numbers on the face of a clock B) number of peers on a jury C) time it takes to showe
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Answer: C

Explanation: It would be c because, there is no certain time it takes to take a shower.Someone could take a shower for a hour or 10 minutes.

Continuous Data means there is no set or certain time.So like a shower, you can take however long you want.

5 0
3 years ago
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Convert 6.42 kilograms to grams.<br><br> 0.00642 g<br> 64.2 g<br> 642 g<br> 6,420 g
Katarina [22]
1 kilogram (kg) equals to 1000 grams (g). Since you have 6.42 kilograms, divide 6.42 kilograms to 1000 grams. Your final answer is 6420 grams in total.
4 0
2 years ago
The value of a small airplane depreciates exponentially every year after it is purchased. The value, in thousands of dollars, a(
ratelena [41]

Using an exponential function, it is found that the number 131.5 represents the initial value of the plane, in thousands of dollars.

<h3>Exponential function:</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

In this problem, the function for the value of the airplane after t years is given by:

A(t) = 131.5(0.8)^t

Hence A(0) = 131.5, which means that the number 131.5 represents the initial value of the plane, in thousands of dollars.

To learn more about exponential functions, you can take a look at brainly.com/question/8935549

4 0
2 years ago
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