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vichka [17]
4 years ago
6

X-10/35x+21 / 7/35x+21

Mathematics
2 answers:
kondaur [170]4 years ago
7 0

Answer:

21 xxxtt

Step-by-step explanation:

Yakvenalex [24]4 years ago
4 0

Answer: x<2

Step-by-step explanation:

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If 2x + y = -8 and -4x + 2y = -16, what is the value of y?
Dima020 [189]

Answer:

y = -8

Step-by-step explanation:

Solve as a system of equations

   2x + y = -8       multiply this equation by 2

  -4x + 2y = -16      Do not change

Solving:   4x + 2y = -16

              <u> -4x +2y   = -16   </u>

                       4y = -32

                         y = -8

2x + y = -8  Solve for x

2x = -y - 8      

x = -y/2 - 8/2

x = -1/2y - 4     Substitute this into your second equation

-4x + 2y = -16

-4(-1/2y - 4) + 2y = -16

2y -16 +2y = -16

4y - 16 = -16

4y = -32

y = -8      x = -1/2(-8) -4 = 4 - 4 = 0

 Checking the answer

    2(0) + -8 = -8

     -4(0) +2(-8) = -1 6 = 0 -16 = -16

3 0
3 years ago
Please help me solve for r
s2008m [1.1K]
Add the opposite of any terms that don't have r.
.. K +7s = 4r

Divide by the coefficient of r.
.. (K +7s)/4 = r
7 0
3 years ago
2. A sculptor is planning to make two triangular prisms out of steel. The sculptor will use ΔABC for the bases of one prism and
Phoenix [80]

Answer:

a) SAS

b) Volume of DEF is 4 times the Volume of ABC

Step-by-step explanation:

a) since they have one same/congruent angle (angle B and angle E) and other two sides are in the same ratio, they are similar by SAS similarity theorem.

40/20 = 30/15 = 2

Therefore Δ ABC is similar to Δ DEF

b) Volume of a prism

= base area × height

Let height be 'h cm'

With Base ABC:

Volume = ½×20×15×h = 150h cm³

With Base DEF:

Volume = ½×40×30×h = 600h cm³

600h/150h = 4

Prism with base DEF has a greater volume; it's 4 times of the volume of the prism with base ABC

7 0
4 years ago
What is the solution to the problem in the picture below?
Pie
 this equation ( /2x-1/=5)can be solved if we solve the following equations:
2x-1=5
2x-1=-5

1)We solve the first equation: 
2x-1=5
2x=5+1
2x=6
x=6/2
x=2

2) we solve the second equation.
2x-1=-5
2x=-5+1
2x=4
x=-4/2
x=-2

The solutions of this equation /2x-1/=5 will be: x=3 and x=-2

Answer: x=3 and x=-2


4 0
3 years ago
Find the surface area of the composite figure.
boyakko [2]

Answer:

You are to write a five paragraph literary essay based on one of the 4 prompts and what you have read and learned in this module. These are your options:

1. How do the events of "The White Umbrella" teach the narrator a lesson about shame and acceptance?

2. What role does creativity play in "The Bat-Poet"?

3. How does the character of Squeaky change over the course of "Raymond's Run"?

4. Discuss the influences of older family members on the protagonists and speakers in the stories and poems of this unit.

You are to write a five paragraph literary essay based on what you have read and learned in this module. Your final submission should meet the following requirements.

• Submit completed pre-writing and outline documents.

• Write an essay that contains an introduction with hook and thesis statement, supporting paragraphs with evidence and at least one quotation, and a conclusion that restates the thesis and reviews main points.

• Use transitions appropriate to the pattern of organization.

• Use vocabulary to create tone and voice.

• Cite primary source (quotation).

• Submit completed revision checklist.

• Vary sentence structure.

• Create sentences with parallel structures.

• Use technology in the writing process.

Step-by-step explanation:

7 0
2 years ago
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