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Rufina [12.5K]
3 years ago
10

Which phrase is a description of 3n + 5?

Mathematics
1 answer:
erica [24]3 years ago
6 0

Answer:

If I have the options and then i'll answer the question, please comment them

Step-by-step explanation:

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What is (57/tan30°)m^2
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Whats -4 1/5 times 1/3 ?
tamaranim1 [39]

Answer: -7/5

Step-by-step explanation:

-4(1/5)⋅(1/3)

Convert -4(1/5) to an improper fraction.

A mixed number is an addition of its whole and fractional parts.

− (4 +1/5) ⋅(1/3)

 Add 4 and 1/5

-21/5  ⋅ 1/3

Cancel the common factor of 3.

Move the leading negative in − 21 /5 into the numerator.

−21/5 ⋅ 1/3

Factor 3 out of −21.

3 (−7)/5 ⋅ 3 /1

Cancel the common factor.

Rewrite the expression.

−7 /5

5 0
3 years ago
Read 2 more answers
Which model shows the correct factorization of x2 + 2x – 8?
expeople1 [14]
To factor x^2 + 2x - 8 follow these steps


1) Write to factors, with x as the first term, this way:

(x      )(x      )


2) The sign to the right of the x in the first factor is the same sign of the coeficient of x in the polynomial.

That is +.


The sign to the right of the x of the second factor is the product of the sign of the coefficent of x (this is +) and the sign of the independent term (this is - ).

So that is (+).(-) + -.

Now the two factors have this form:

(x +  ) (x  -  )


3) Now find two numbers whose product is - 8 and whose difference is +2


Those numbers are + 4 and -2.


Then the two factors are:

(x + 4) (x -  2).


So the answer if that the correct factorization is (x + 4) (x - 2)
4 0
3 years ago
Read 2 more answers
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Answer:

1 D

2

Step-by-step explanation:

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3 years ago
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