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Whitepunk [10]
2 years ago
14

Resolve into factors: 81a3 + 3b3

Mathematics
1 answer:
iren [92.7K]2 years ago
8 0

Answer: (3a+b)⋅(9a  2 −3ab+b2 )

Step-by-step explanation:

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Rewrite 9 over 6 as a equivalent fraction and percent
vovangra [49]

Answer:3/2 and 150%

Step-by-step explanation:

9/6 divided by 3 on both top and bottom and get 3/2

9÷ 6= 1.5 so convert it into a percent! (move the decimal 2 places to the Right) 150%

5 0
3 years ago
1.75x+1.25y=2<br> 7x+5y=9<br> how many solutions does this system of equations have?
Vlad1618 [11]

Answer:

true 7x+5y=9

Step-by-step explanation:

7 0
3 years ago
What is the value for the missing angle ??
allsm [11]
Answer: 9 inches.
Do the pythagorean theorem to find your answer.
Formula: a^2 + b^2 = c2
12 = b
15 = c
a^2 + 12^2 = 15^2
Simplify the equation
a^2 + 144 = 225
Subtract 144 on both sides.
a^2 = 81
Square root of 81 is 9.
8 0
2 years ago
Camilla makes and sells jewelry. she has 8,160 silver beads and 2,880 black beads to make necklaces. Each necklace will contain
liubo4ka [24]
8160 dived by 85 equals 96, 2880 divided by 30 equals 96, therefore she can make 96 necklaces
7 0
3 years ago
Read 2 more answers
D=DVDs and G=Games solve for 2D+3G=15.50 and 3D+1G=12.05
kogti [31]

We have

1G = 12.05 - 3D;

Then,

2D + 3( 12.05 - 3D) = 15.50;

2D + 36.15 - 9D = 15.50;

- 7D = - 20.65;

D = 2.95;

Finally, G = 12.05 - 3 x 2.95;

G = 3.20;

3 0
3 years ago
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