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Archy [21]
3 years ago
13

12.

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
8 0

Answer:

8.5%

Step-by-step explanation:

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Write as a polynomial: <br><br> 2a^2(a-1)(3-a)
seropon [69]

Answer:

-2a^4+8a^3-6a^2

Step-by-step explanation:

2a^2(a-1)(3-a)

2a^2(-a^2 +3a-3+a)

2a^2(-a^2+4a-3)

-2a^4+8a^3-6a^2

6 0
3 years ago
In 3/4 pound of a spice mix there is 5/6 cup of cinnamon how much is it if it is a spice mix contain per pound?
nordsb [41]

There are 10/9 cups of cinnamon in 1 pound of spice mix

and if you wanna convert the improper fraction to a mixed number it will be 11/9

5 0
3 years ago
The sales tax for an item was 12.80 and it cost 320 before tax​
Arlecino [84]

Answer:

4%

Step-by-step explanation:

Divide the tax by the pre-tax price =

12.80/320 = .04 or 4%

8 0
3 years ago
Simplify the expressions and find the value:
Dahasolnce [82]

Answer:

x(x−3)+2=x.x−3x+2 \\ =x2−3x+2 \\F or x=1 \\ putting \:  x=1  \: in  \: expression \\ x2−3x+2=(1)2−3(1)+2 \\ =1−3+2 \\ =3−3 \\ =0

Solve  \: 3y(2y−7)−3(y−4)−63 for y=−2 \\ First \:  simplify \:  it, \\ =6y2−21y−3y+12−63 \\ =6y2−24y−51 \\ Put \:  y=−2 \: =6(−2)2−24(−2)−51  \\  =6×4+48−51 \: 6×4+48−51 \\  24+48−51 \\ =21

3 0
3 years ago
-<br> Solve for n.<br> - - - -<br> 49n = 14
Darina [25.2K]

Answer: 3.5

Step-by-step explanation: divide 49 by 14

3 0
4 years ago
Read 2 more answers
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