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GuDViN [60]
2 years ago
9

A: 7x - 3x +10 B:+4x²+66-4 A-B=

Mathematics
1 answer:
Annette [7]2 years ago
8 0

Answer:

  • A-B=7x-3x+10-4x²-66+4
  • 4x-52-4x²

hope it helps

stay safe healthy and happy.

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How many diffrent ways can a rectangle be named
11111nata11111 [884]

Answer:

Some other names that we use for rectangles are parallelograms, quadrilaterals, and polygons.

So, 3 different names.

Hope this helps!

7 0
2 years ago
What is a forecast error
Mama L [17]

Answer:In statistics, a forecast error is the difference between the actual or real and the predicted or forecast value of a time series

Step-by-step explanation:find the Mean Absolute Percent Error (MAPE) of your forecast. Statistically MAPE is defined as the average of percentage errors.

4 0
3 years ago
Two friends Ana and Juan are buying books by joining the History Book
Travka [436]

Answer:

Ana  spent $17  per book on average.

Juan  spent $14.78  per book on average.

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Step-by-step explanation:

Ana has to pay a yearly fee of $15 to join.

She spends a total of $525 for 30 books.

The amount spent on books = Total amount - yearly fee

                                                 = $525- $15= $510

Price per book on the average = $510/30= $ 17

Ana  spent $17  per book on average.

Juan has to pay a yearly fee of $10 to join.

He spends a total of $350 for 23 books.

The amount spent on books = Total amount - yearly fee

                                                 = $350- $10= $340

Price per book on the average = $340/23= $ 14.78≅ $15

Juan  spent $14.78  per book on average.

The function can be established if y gives the total cost and x gives the number of books

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Juan has a better deal because the yearly fee is less also the price per book is less.

8 0
3 years ago
I have 20 books. Some are English and some are French. If 15 books are French, what fraction of books are in English?
allsm [11]
15/20 are French so 5/20 are English
Simplified that’s 1/4
Only applies if all the books are either English or French
I think
6 0
2 years ago
Nevermind yfgeruwijdksfgheywu
UkoKoshka [18]

Answer:

The solution will be negative.

Step-by-step explanation:

I'm not quite sure what sort of answer you're looking for though.

6 0
2 years ago
Read 2 more answers
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