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Helga [31]
3 years ago
5

Choose the correct simplification of 9x2(4x + 2x2 − 1).

Mathematics
1 answer:
RSB [31]3 years ago
3 0

Answer:

72X + 54

Step-by-step explanation:

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yeah Koke prepaid debit card with $20 on it for her first purchase with the car she bought some Paul Ruben how to craft store th
Jlenok [28]

Answer:

she bought 27 yards of ribbon

Step-by-step explanation:

20 - 14.06 = 5.94

5.94/0.22 = 27

3 0
2 years ago
Persamaan garis lurus yang melalui titik potong garis dengan persamaan 2x+5y=1 dan x-3y=-5 serta tegak lurus garis dengan persam
Novosadov [1.4K]

pertama menemukan tempat di mana dua persamaan mencegat<span>
2x+5y=1
x-3y=-5
</span>
kalikan persamaan kedua ( x - 3y = -5 ) oleh -2
-2x+6y=10
<span>tambahkan dua persamaan bersama-sama
2x+5=1
<u>-2x+6y=10 +</u>
0x+11y=11
</span>
11y=11
<span>membagi kedua sisi dengan 11
y=1
</span>
subsitute y = 1 untuk y dalam semua persamaan untuk memecahkan x
x-3y=-5
x-3(1)=-5
x-3=5
x=8

x=8
y=1
(x,y)
<span>titik persimpangan adalah ( 8,1 )

</span>
<span>untuk membuat menemukan garis tegak lurus lebih mudah , mengkonversi persamaan terakhir ke bentuk lereng - intercept
2x-y+5=0
2x+5=y
y=2x+5
</span>
<span>garis tegak lurus memiliki kemiringan yang , bila dikalikan dengan kemiringan garis lainnya , memberikan -1
y=mx+b
m=</span>lereng

y=2x+5
2 <span>dikalikan x=-1
x=-1/2
y=-1/2x+b
</span><span>subsitute ( 8,1 ) ke dalam persamaan dan memecahkan untuk b
x=8
y=1
1=-1/2(8)+b
1=-4+b</span>
tambahkan 4 untuk kedua belah pihak
5=b
<span>persamaan adalah y=-1/2+5
</span>
<span>( Catatan : Saya menggunakan google translate )</span>



7 0
4 years ago
Really Important!!! Plz help!!! Will make you the brainliest!! Mia creates a box plot using 28, 34, 40, 24, 44, 49, and 32 as th
insens350 [35]
The correct box plot will have the "whiskers" extending to 24 and 49. The first quartile will be around 28.5 and the third quartile will be around 41.8. The median will be at 34. 

**your question didn't include the box plots to choose from, so use this information to find which one it is :)
3 0
4 years ago
Consider the four equations below. Is there one equation that you think doesn't
butalik [34]
X2-1 does not belong
3 0
3 years ago
Solve the equation: 5 ( x - 2) + 4 ( 3 + x) = 20​
bixtya [17]

Answer:

x=2

Step-by-step explanation:

5 ( x - 2) + 4 ( 3 + x) = 20​

Distribute

5x -10 +12 +4x = 20

Combine like terms

9x +2 = 20

Subtract 2 from each side

9x+2-2 = 20-2

9x = 18

Divide each side by 9

9x/9 = 18/9

x = 2

3 0
3 years ago
Read 2 more answers
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