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VikaD [51]
2 years ago
8

What is the least common denominator of the rational expressions below? 4/x^2-7x + 1/x^2-4x-21

Mathematics
1 answer:
AleksAgata [21]2 years ago
3 0

Answer:

x-7

Step-by-step explanation:

1. Find the GCF of x^2-7x (which is x) and factor x^2-4x-21

2. Multiply 1/(x-7)(x+) by x and 4/x(x-7) by (x+3) to get (x-7) as both denominators

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Pls do both for ( brainlist, thanks, and a 5 star review)
JulijaS [17]

Answer

2/3+5/6= is 1.5

Step-by-step explanation:

first do 2/3=0.66666666666

and 5/6=0.83333333333

then do 0.66666666666+0.83333333333=1.5

3 0
2 years ago
Read 2 more answers
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steposvetlana [31]

Answer:

oof thats hard

Step-by-step explanation:

6 0
3 years ago
Students in a class have to choose 4 out of 7 people who were nominated for the student council. How many different groups of st
Lady_Fox [76]

Answer:

35

Step-by-step explanation:

3 0
2 years ago
(PLSSSS HELP, MY FATE IS IN YOUR HANDS) Determine which three out of the six points shown below are a solution to the equation x
alexandr402 [8]

Answer:

The required points are -

(-2,8), (7,5), (1,7)

4 0
3 years ago
(2x + 3y) + (4x - 3y) = 11+(-5)
Maurinko [17]

Answer:

The correct option should have been 6x=6.

Step-by-step explanation:

Given the expression

\left(2x\:+\:3y\right)\:+\:\left(4x\:-\:3y\right)\:=\:11+\left(-5\right)

solving the expression

\left(2x\:+\:3y\right)\:+\:\left(4x\:-\:3y\right)\:=\:11+\left(-5\right)

Remove parentheses:  (a) = a

2x+3y+4x-3y=11-5

Group like terms

3y-3y+2x+4x=11-5

Add similar elements

6x=6

It is clear that not a single given option is 6x=6. It means no option is correct. It seems you mistyped the correct options.

The correct option should have been 6x=6.

3 0
2 years ago
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