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AlladinOne [14]
3 years ago
10

Solve the equation. You may find using algebra tiles to be helpful. 2a − 2 = −4 a =

Mathematics
1 answer:
-Dominant- [34]3 years ago
4 0

Answer:

2a - 2 = -4a

2a - 2a - 2 = -4a - 2a

-2 = -6a

-2/-6 = -6a/-6

1/3 = a

Step-by-step explanation:

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Which of the following statements is true?
wolverine [178]

Answer:

D: Point E is the midpoint of segment AC

Step-by-step explanation:

The midpoint is a point where it is in the middle of a line, line segment, or ray.

Congruent means something that is exactly the same.

Congruent triangles are two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

Bisect means separating something into two precise and equal pieces/ angles.

Similar triangles means two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.

8 0
3 years ago
A wise man once said, "400 reduced by 3 times my age is 208" What is the mans age
yanalaym [24]

Answer:

96

Step-by-step

explanation:

400−2x=208. 400−208=2x. 192=2x. x=96

6 0
2 years ago
Read 2 more answers
Enter an expression equivalent to (3x^2+2y^2-3x) + (2x^2+y^2-2x) - (x^2 + 3y^2 +x)
11111nata11111 [884]

Answer:

4x² - 6x

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - x
  2. Combine like terms (x²):                                                                                   4x² + 2y² - 3x + y² - 2x - 3y² - x
  3. Combine like terms (y²):                                                                                   4x² - 3x - 2x - x
  4. Combine like terms (x):                                                                                    4x² - 6x
4 0
2 years ago
HELP PLZZ Select the correct answer.
stira [4]

Answer:

none

Step-by-step explanation:

There is not a given angle side angle or a side angle side (no two angles and no two sides) so no to the first two.

HL includes two given side, which one must be the hypotenuse, and a right angle so no to that one.

6 0
2 years ago
What is the solution to the system of equations below?
Vanyuwa [196]

Answer:

A. (–8, 2)

Step-by-step explanation:

(1)       y =  ½x + 6  

(2)       y = -¾x –  4     Set (1) = (2)  

½x +   6 = -¾x –  4     Multiply each side by 4

2x  + 24 = -3x – 16     Add 16 to each side

2x  + 40 = -3x              Subtract 2x from each side  

        40 = -5x              Divide each side by -5

(3)       x = -8                 Substitute (2) into (1)

          y = ½(-8)  +6

             = -4 + 6

             =  2

The solution to the system of equations is (-8 ,2).

You can see the graphs of the two functions in the figure below. The two lines intersect at (-8, 2).

Check:

2 = ½(-8) + 6     2 = -¾(-8) - 4

2 = -4 +6           2 = 6 - 4

2 = 2                 2 = 2

8 0
3 years ago
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