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Yuliya22 [10]
4 years ago
8

2n 3 + 4n 2 - 7 and -n 3 + 8n - 9 what is the sum

Mathematics
2 answers:
Art [367]4 years ago
8 0
N^3 +4n^2 +8n -16
hope it help
mark me brainliest if i right ty
Salsk061 [2.6K]4 years ago
5 0

Answer:

n^3 +4n^2 +8n -16

Step-by-step explanation:

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When the smaller of two consecutive integers is added to two times the​ larger, the result is 26. find the integers?
Mashutka [201]
(X)+2(x+1)=26
3x=24
X=8

Y=x+1
Y=8+1
Y=9
The two numbers are 8 and 9
8 0
4 years ago
Cual es la. Longitud de un lápiz 2
asambeis [7]

<span>Traduje su pregunta al Inglés y respondió a esto. La longitud de un lápiz estándar número 2 es de 7,5 pulgadas, y el lápiz tiene un diámetro de unos 7 milímetros. Espero que esto ayudó☻</span>



I translated your question to english and answered this. <span>The length of a standard number 2 pencil is 7.5 inches, and the pencil has a diameter of about 7 millimeters. Hope this helped ☻

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4 0
3 years ago
Option A: 2 pack the first week, 8 packs the second week, 32 packs the third week, 128 packs the fourth week and so on for 6 wee
Sholpan [36]
Part A=B
part B=1480
if you add them up and multiply by 6 you get 1020
2500-1020=1440
3 0
4 years ago
4x+3y=12
77julia77 [94]

Answer:

B, C, F

Step-by-step explanation:

Given:

\left\{\begin{array}{l}4x+3y=12\\ \\2x+3y=-6\end{array}\right.

Subtract the second equation from the first equation:

(4x+3y)-(2x+3y)=12-(-6)\\ \\4x+3y-2x-3y=12+6\\ \\2x=18\\ \\x=9

Option B "The x coordinate of the solution is 9" is ture

Substitute it into the first equation:

4\cdot 9+3y=12\\ \\36+3y=12\\ \\3y=12-36\\ \\3y=-24\\ \\y=-8

Option F "The y coordinate of the solution is -8" is true.

Point (9,-8) is in the IV quadrant, so option C is true.

8 0
3 years ago
Liz is hiking a trail that is 0.8 miles long. Liz hikes the first 2 tenths of the distance by herself. She hikes the of the way
antoniya [11.8K]
0.6 miles.

Since there is 0.8 miles to hike in total, she hiked 0.2 miles.

To solve, we just easily subtract the amount that Liz hiked from the amount that needs to be hiked.

She hiked 0.2 miles, which means we need to subtract 0.2 from 0.8.

8 - 2 = 6

The answer is 0.6 miles.
3 0
4 years ago
Read 2 more answers
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