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Cloud [144]
2 years ago
9

What is 2/3(1+n)=-1/2n

Mathematics
1 answer:
professor190 [17]2 years ago
4 0

Answer:

-4/7

Step-by-step explanation:

2/3(1+n)=-1/2n

2/3+2/3n=-1/2n

2/3=-1/2n-2/3n

2/3=-3/6n-4/6n

2/3=-7/6n

n=(2/3)/(-7/6)

n=(2/3)(-6/7)

n=-12/21

simplify

n=-4/7

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Lesechka [4]
9r=3r+6
Subtract 3r from both sides
6r=6
Divide both sides by 6
r=1
7 0
2 years ago
Read 2 more answers
What are two basic parts of a fraction
bearhunter [10]

Answer:

Numerator and denominator

Step-by-step explanation:

Numerator is the top number

Denominator is the bottom number

6 0
3 years ago
The quadratic equation -6=x^2+4x-1 in Standard form . What is the value of c in his new equation
Vitek1552 [10]

Answer:

c = 5

Step-by-step explanation:

A quadratic equation in standard form is

ax² + bx + c = 0 : a ≠ 0

Given

- 6 = x² + 4x - 1 ( add 6 to both sides )

0 = x² + 4x + 5 ← in standard form

with c = 5

3 0
3 years ago
PLEASE ANSWER + BRAINLIEST!!!
ozzi

Answer:

C is correct

Step-by-step explanation:

Given: System of linear inequality

y

y\geq 2x+3

First we will draw the graph of system of equation and then see the correct option.

Equation 1: y

We will make the table.

 x :  -2    0     2

 y :   1     0    -1

Test Point: (0,4)

0<-2 ( False )

Shaded area away from (0,4)

Equation 2:y\geq 2x+3

We will make the table.

 x :  -2    0     2

 y :  -1     3    7

Test Point: (0,4)

4≥3 ( True )

Shaded area towards (0,4)

Please see attachment for graph.

Hence, C is common shaded area (region)

8 0
3 years ago
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Factor this trinomial completely.
WITCHER [35]

Answer:

Option C. (2x+3)(6x – 5) is the correct answer.

Step-by-step explanation:

Given polynomial(trinomial) is:

12x^2 + 8x - 15

The given trinomial is quadratic. Factorization will be as follows:

Multiplying the co-efficient of x^2 and the constant results in 180. We have to make factors of 180 in such a way that their sum of difference is equal to the co-efficient of x.

The required factors are 18 and 10

So,

=12x^2+18x-10x-15\\=6x(2x+3)-5(2x+3)\\= (6x-5)(2x+3)

Hence,

Option C. (2x+3)(6x – 5) is the correct answer.

8 0
3 years ago
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