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Georgia [21]
3 years ago
8

For the following problem, do not use algebra. Make a guess that satisfies one or more conditions of the

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

47 Ducks and  7 piglets.

Step-by-step explanation:

Lets try 27 of each to start

Ducks Piglets  Total legs

27        27          54 + 108 = 162.  Too many

30        24          60 + 96  =  156   Too many. Increase the ducks by 10:

40        14           80 + 56  =   136.  

50          4          100 + 16  = 116 This < 122 so ducks between 40 and 50..

45           9          90 + 36 = 126  Too high so increase  ducks:

46           8          92 + 32 = 124  Close.

47           7           94 + 28 = 122.

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Elina [12.6K]

Answer:

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5 0
2 years ago
Match the integrals with the type of coordinates which make them the easiest to do.
WARRIOR [948]

Answer:

1. C. cylindrical coordinates

2 A. spherical coordinates

3. A. spherical coordinates

4. D. Cartesian coordinates

5  B. polar coordinates

Step-by-step explanation:

USE THE BOUNDARY INTERVALS TO IDENTIFY

1. ∭E dV where E is:  

x^2 + y^2 + z^2<= 4, x>= 0, y>= 0, z>= 0  -- This is A CYLINDRICAL COORDINATES SINCE x>= 0, y>= 0, z>= 0

2. ∭E z^2 dV where E is:  

-2 <= z <= 2,1 <= x^ 2 + y^2 <= 2 This is A SPHERICAL COORDINATES

3. ∭E z dV where E is:

1 <= x <= 2, 3<= y <= 4,5 <= z <= 6 -- This is A SPHERICAL COORDINATES

4. ∫10∫y^20 1/x dx  ---- This is A CARTESIAN COORDINATES

5. ∬D 1/x^2 + y^2 dA where D is: x^2 + y^2 <=4  This is A POLAR COORDINATES

6 0
3 years ago
6. Which is a unit rate?
Taya2010 [7]

it's A

Step-by-step explanation:

describes 55 per unit/the hour

3 0
3 years ago
What is 1.5533 rounded to the nearest cent
marta [7]
Centi = Hundreds. 
1.5533.
Round up by seeing if the number to the right of the hundreds place is 5 or higher. If it's not, don't change anything.
1.55 is your answer.
4 0
3 years ago
Ten women sit in 10 seats in a line. All of the 10 get up and then reseat themselves using all 10 seats, each sitting in the sea
Alik [6]

Women can be seated in 89 ways.

Let Sn be the number of possible seating arrangements with n women. Consider n≥3 and focus on the rightmost woman. If she goes back to her seat, then there are Sn−1 ways to seat the remaining n−1 women. If he is sitting in the penultimate seat, then the woman who was sitting there before must now sit in the rightmost seat.

This gives us Sn−2 ways to seat another n−2 woman, so we get the recursion Sn=Sn−1+Sn−2. Starting with S1=1 and S2=2 we can calculate S10=89.

For more information about permutation, visit brainly.com/question/11732255

#SPJ4

5 0
2 years ago
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