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Slav-nsk [51]
3 years ago
10

(6x2y + 4xy2 − 2y3 + 6) + (x2y + 3y3 − 5)

Mathematics
1 answer:
AleksandrR [38]3 years ago
8 0
6x(squared)4y(squared)+ 4xy(squared)+y+1
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Find a, b, and c please and thank u
aniked [119]
A= 80
b= 100
c= 100

a is the same as the 80° already shown and to get b you have to subtract 80 from 180
4 0
2 years ago
The length of a train car is 50.6 feet this is baffling 8 feet less than six times the width what is the width
hram777 [196]

Answer:

the width is 9 23/30 feet ≈ 9.767 ft

Step-by-step explanation:

Let w represent the width of the train car. Then 6 times the width is 6w, and 8 ft less than that is (6w-8). We are told this amount is 50.6 feet, so we have ...

6w -8 = 50.6

6w = 58.6 . . . . . . . add 8; next divide by 6

58.6/6 = w = 586/60 = 293/30 = 9 23/30 . . . . feet

This is a repeating decimal: 9.766666...

The width of the train car is 9 23/30 ft, about 9.77 ft.

3 0
3 years ago
This is so hard to me i need help <br> fast
Alexus [3.1K]

Answer:

1/3

Step-by-step explanation:

You can answer this as

9/27=1/3

and

3/9=1/3

and so 1/3 is the the constant proportionality for both figures

Hope You Understand :)

8 0
2 years ago
-3 + (-5) - 2 can someone help me
cricket20 [7]
The answer to your question is -10
5 0
3 years ago
A pyramid of logs has 2 logs in the top row, 4 logs in the second row from the top, 6 logs in the third row from the top, and so
mamaluj [8]

Answer:

1) Is the pattern an arithmetic sequence?​

Yes it is

2)Identify a and d.​

a = First term = 2

d = Common difference = 2

3) Write the 50th term of the sequence.​

50th term = 100

4) Find the total number of logs in the first 10 rows.​

= 1010 logs

Step-by-step explanation:

Is the pattern an arithmetic sequence?​

Yes it is

2) Identify a and d.​

A pyramid of logs has 2 logs in the top row, 4 logs in the second row from the top, 6 logs in the third row from the top, and so on,

The formula for arithmetic sequence =

an = a+ (n - 1)d

a = First term

d = Common difference

For the above question:

a = 2

d = Second term - First term

= 4 - 2

d = 2

3) Write the 50th term of the sequence.​

Using the formula for arithmetic sequence

an = a+ (n - 1)d

a = 2

n = 50

d = 2

a50 = 2 + (50 - 1)2

= 2 + (49)2

= 2 + 98

= 100

The 50th term = 100

4)Find the total number of logs in the first 10 rows.​

Sum of first n terms = n/2(a + l)

n = 10

a = first term = 2

We are told that there are 200 logs in the bottom row, hence:

l = last term = 200 logs

Hence,

Sn = 10/2×[ (2 + 200

= 5(202)

= 1010 logs

7 0
3 years ago
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