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Alja [10]
3 years ago
15

(9mn-19^4n) - (8m^2+12m^4n+9mn

Mathematics
1 answer:
Alja [10]3 years ago
6 0

Answer:

-19n^4 - 8m^2 - 12m^4n

Step-by-step explanation:

8m^2 + 12m^4n + 9mn

-

19n^4 9mn

------------------------------------------------------------------------

-19n^4 - 8m^2 - 12m^4n

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Please help me thank you in advance!
Oxana [17]

Answer:

First option: (x+9)^2=81

Step-by-step explanation:

It has the same solution

7 0
3 years ago
1.) What is the x-coordinate of the midpoint of the line segment with the following endpoints?
Elza [17]
Luckily, finding midpoints is very easy...

It is just the average of the coordinates...

((x2+x1)/2, (y2+y1)/2)

So for example: your first segment...

((2+8)/2, (3+5)/2) then the midpoint is: (5, 4)
8 0
3 years ago
Can you guys do all of them I will BRAINLIST YOU ITS DUE TOMORROW
nadezda [96]

Answer:

a1. 0.1

a2. 0.14

b1. 11.0

b2. 10.98

c1. 39.2

c2. 39.18

d1. 71.6

d2. 71.57

4. 10.5

5. No, the correct answer is 35.28 because the 4 would round down, not up.

6. Tu is correct because the 69¢ would make it round up, not down

Hope this helps :)

5 0
3 years ago
The ratio of girls and boys participating in sports at ESTM is 4:5. If the number of girls is 153,
Dmitry_Shevchenko [17]

Answer:

191 boys

Step-by-step explanation:

4/153 = 5/x

4x = 153 * 5

4x = 765

x = 765/4

x = 191.25

There are 191 boys.

7 0
3 years ago
I need help please and thank you
JulijaS [17]

Answer:

69.3076923077 rounded to the nearest tenth would be

69.3

Step-by-step explanation:

4 0
3 years ago
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