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balandron [24]
3 years ago
11

Solve, 3y(4y−1)−2y(6y−5)=9y−8(3+y)

Mathematics
1 answer:
igomit [66]3 years ago
5 0

Answer:

3y(4y-1)-2y(6y-5)=9y-8(3+y)

12y∧2-3y-12y∧2+10y=9y-24-8y

12y∧2-12y∧2-3y+10y=9y-8y-24

7y=y-24

7y-y=-24

6y=-24

y=-24/6=-4

Step-by-step explanation:

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Answer:

1353.13

Step-by-step explanation:

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then round to the hundredths place to get 1353.13

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Name a number that is an integer, but not whole number.
tekilochka [14]

Answer:

-1

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What is the slope of the line that passes through the points (-6, 8) and (-9, 7)? Write your answer in simplest form.
yanalaym [24]

Answer:

m=1/3

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Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
From where Kiana is standing, she must look up at a 50° angle to see the top of a building. If she backs up 50 feet, she will ne
Morgarella [4.7K]
For this case, what we must do is solve the following system of equations:
 tan (50) = h / x
 tan (40) = h / (x + 50)
 Solving the system we have:
 (x + 50) * tan (40) = h
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 Matching:
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 Rewriting:
 x (tan (50) - tan (40)) = 50 * tan (40)
 x = 50 * tan (40) / (tan (50) - tan (40))
 x = 118.9692621
 Substituting:
 h = (x) * tan (50)
 h = (118.9692621) * tan (50)
 h = 141.7820455
 Answer:
 
The height of the building is:
 
h = 141.7820455 ft
5 0
3 years ago
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How do you simplify cscx*secx-tanx?
kenny6666 [7]
Csc x · sec x - tan x = 
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=  cos² x / ( sin x cos x ) = 
= cos x / sin x = cot x 
5 0
3 years ago
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