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allochka39001 [22]
3 years ago
14

Find one value of x that is a solution to the equation: (3x + 7)2 = -6x – 14

Mathematics
2 answers:
lara [203]3 years ago
8 0

Answer: x = -7/3

Step-by-step explanation:

https://www.symbolab.com/solver/step-by-step/%5Cleft(3x%20%2B%207%5Cright)2%20%3D%20-6x%20-%2014

there are the steps

aliya0001 [1]3 years ago
8 0

Answer:x=-7/3

                   

Step-by-step explanation:(3x+7)(2)=−6x−14

(3x)(2)+(7)(2)=−6x+−14(Distribute)

6x+14=−6x+−14

6x+14=−6x−14

6x+14+6x=−6x−14+6x

12x+14=−14

12x+14−14=−14−14

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More help pls! 3 and 4
Leya [2.2K]

Answer:

3. One Solution. (0,4). (they have different slopes and y-intercepts)

The solution can be found using elimination method:

Add the equations together

y = -x + 4

y = x - 4

2y = 0

y = 0

Solve for x

0 = x - 4

x = 4

(4, 0)

4. No solution

x + y = -2 and 3 which is not possible

The two lines would be parallel

7 0
3 years ago
Consider the equation and its solution. Negative 15 (x minus box) = 25. Negative 15 x + 30 = 25. Negative 15 x = negative 5. x =
Solnce55 [7]

Answer:

  -2

Step-by-step explanation:

Between the first two steps we see ...

  15(x-\boxed{^})=25\\\\15x+30=25

Applying the distributive property to the first equation and comparing to the second, we see that ...

  -15\boxed{^}=30\\\\\boxed{^}=\dfrac{30}{-15}=-2

The number in the box should be -2.

4 0
3 years ago
Read 2 more answers
Select 2 options
madreJ [45]

Answer:

(×-5)(×+1)

×^2+×-5×-5

×^2-4×-5

8 0
3 years ago
Read 2 more answers
What is the sum of the infinite geometric series 9−6+4−83+...9-6+4-83+...??
vivado [14]
Successive terms have a common factor of -\dfrac23, which means the nth partial sum of the series can be written as

S_n=9-6+4-\dfrac83+\cdots+9\left(-\dfrac23\right)^{n-1}
S_n=9\left(1+\left(-\dfrac23\right)^1+\left(-\dfrac23\right)^2+\left(-\dfrac23\right)^3+\cdots+\left(-\dfrac23\right)^{n-1}

\implies-\dfrac23S_n=9\left(\left(-\dfrac23\right)^1+\left(-\dfrac23\right)^2+\left(-\dfrac23\right)^3+\left(-\dfrac23\right)^4+\cdots+\left(-\dfrac23\right)^n\right)

\implies S_n-\left(-\dfrac23\right)S_n=9\left(1-\left(-\dfrac23\right)^n\right)
\dfrac53S_n=9\left(1-\left(-\dfrac23\right)^n\right)
S_n=\dfrac{27}5\left(1-\left(-\dfrac23\right)^n\right)

As n\to\infty, the geometric term vanishes, leaving you with

S=\displaystyle\lim_{n\to\infty}S_n=\dfrac{27}5
7 0
3 years ago
Mr. Gonzalez built two identical flower beds in his yard with the dimensions shown. A prism has a length of 6 feet, height of 2
Lady bird [3.3K]

Answer:

For the 2 the identical flower beds he will require 44 × 2 = 88 ft² of paints to paint the sides of the beds.

Step-by-step explanation:

The prisms are 2 identical flower beds . The dimensions are the same which have a length of 6 ft , height of 2 ft and width of 5 ft. He wants to paints the side of the beds which is the lateral area of the prisms.

Lateral surface area of a rectangular prism is adding the area of the lateral faces of the prism.

Lateral surface area = PH

P = perimeter of the side

H = height

perimeter = (2L + 2W)

where

L = length

W = width

L = 6 ft

W = 5 ft

perimeter = (2L + 2W)

perimeter = (2 × 6 + 2 × 5)

perimeter = (12 + 10)

perimeter = 22 ft

Lateral area = 22 × 2

Lateral area = 44 ft²

For the 2 the identical flower beds he will require 44 × 2 = 88 ft² of paints to paint the sides of the beds.

3 0
3 years ago
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