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miv72 [106K]
2 years ago
7

Consider the equation: 3(–4n – 9) = 21

Mathematics
2 answers:
earnstyle [38]2 years ago
8 0

Answer:

The answer is Negative Four -4

Step-by-step explanation:

hram777 [196]2 years ago
7 0

Answer: N=-4

Step-by-step explanation:

STEP

1

:

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  -4n - 9  =   -1 • (4n + 9)

Equation at the end of step

2

:

 -3 • (4n + 9) -  21  = 0

STEP

3

:

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  -12n - 48  =   -12 • (n + 4)

Equation at the end of step

4

:

 -12 • (n + 4)  = 0

STEP

5

:

Equations which are never true:

5.1      Solve :    -12   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

5.2      Solve  :    n+4 = 0

Subtract  4  from both sides of the equation :

                     n = -4

One solution was found :

n = -4

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Ill give brainless to whoever can help me with this problem
scoundrel [369]
Answer:

Q’ = (-8, -4)
R’ = (-2, -4)
S’ = (-2, 4)
T’ = (-8, 4)

Hope this helps.
8 0
2 years ago
Y=-7/8x<br>proportional or not proportional<br>constant of proportionality: k=<br><br>​
PSYCHO15rus [73]

Answer:

proportional, k = -7/8

Step-by-step explanation:

since y=kx, k must be -7/8

5 0
2 years ago
What is the smallest whole number that can be multiplied by 300 such that the product is a perfect cube?
Neko [114]

300=2×2×5×5×3

We observe that 2 and 5 are grouped in pairs and the 3 is left unpaired.

If we multiply 300 by the factor 3 then  

300×3=2×2×5×5×3×3

900=2×2×5×5×3×3 which is a perfect square.

∴ Required number is 3

root of 900  =30

5 0
3 years ago
Read 2 more answers
In 1960, the average cost of a gallon of milk was $0.49. In 1985, the average cost of a gallon of milk was $2.26. Which of the f
USPshnik [31]

Answer: its C

Step-by-step explanation:

HOPE THIS HELPS

3 0
2 years ago
The volume of a rectangular prism whose dimensions are binomials with integer coefficients is modeled by the function V(x) = x^3
Levart [38]

Answer:

The missing dimension of the prism is (x-4)

Step-by-step explanation:

Here, we want to find the missing dimensions of the prism

To get the volume, we are to multiply three dimensions since we are talking about volume

Mathematically, to find the third dimension, we need to divide the original polynomial by the product of the two other dimensions

The product of the two other dimensions is;

(x-1)(x-9) = x^2-9x-x + 9

= x^2-10x+ 9

So we divide;

(x^3-14x^2+49x-36)/(x^2-10x+ 9)

We can use long division to get this

using long division, the answer here is x-4

5 0
2 years ago
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