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lawyer [7]
2 years ago
14

Factor completely 81x^2-27x-18

Mathematics
1 answer:
Musya8 [376]2 years ago
4 0
Find the greatest common factor which is 9 
9(9x^2-3x-2) and then factor the equation in the parenthesis 
so the factored equation will be  9(3x+1)(3x-2)
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6th grade Geometry, please help it's due soon!
Eddi Din [679]

Answer:

1. ABO, 2. OCD

Step-by-step explanation:

Since they have the same degrees of angles.

EX: <OA, <BO, <CO, <DO.

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6 0
3 years ago
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What are the sales taxes on the state level collected for
Andru [333]

Answer:

The goverment collects sales taxes so they can use the moeny to pay for services like police, firemen, hospitals. They also use them to pay for building things like roads, puplic schools, puplic outdoor places, and building

Step-by-step explanation:

8 0
2 years ago
Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks s
ipn [44]
The way she has the equation set up, she is only selling 1 bottle of tea and x bottles of water. So, she basically forgot to put the variable in that represents the number of bottles of tea sold

the way it should be : x = # of bottles of water, and y = # of bottles of tea
1.25x + 1.49y = 100
8 0
3 years ago
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un unitățile de măsurat lungimea mai mici decât unitatea principală sunt.......................... ................. Și.........
Alchen [17]

Answer:

english plz !!!!!!!!!!

Step-by-step explanation:

3 0
3 years ago
What is the length of CD ? In this diagram ABC EDC ?<br> Please help !!!!
n200080 [17]
Answer:
CD = x = 4 units

Explanation:
We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:
\frac{BC}{CD} =  \frac{CA}{CE} =  \frac{AB}{ED}

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5

Substitute in the above proportionality and solve for x as follows:
\frac{20-x}{x} =  \frac{20}{5} = 4

4x = 20 - x
5x = 20
x = 4

Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units

Hope this helps :)
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3 years ago
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