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miv72 [106K]
3 years ago
6

Justify Reasoning Determine whether 3x + 12 + x is equivalent to 4(3 + x). Use properties of operations to justify your answer.

Mathematics
1 answer:
Orlov [11]3 years ago
4 0
For 3x + 12 + x, do like terms:
4x + 12
For 4(3 + x), multiply
12 + 4x
They are both the same, just written in different ways. One is adding like terms and the other is multiplying with parentheses. Even though it may be switched around, it is still the same.

Hope this helps :)
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Y
Mumz [18]

Answer:

C. x - y = 0

Step-by-step explanation:

First find write the equation in slope-intercept form, then rewrite to convert to standard form as Ax + By = C.

Equation in Slope-intercept form:

Find m and b

m = rise/run = 1/1 = 1

b = y-intercept = 0 (where the line intercepts the y-axis)

Substitute m = 1, and b = 0 into y = mx + b

Thus:

y = (1)(x) + 0

y = x

Rewrite to convert to standard form.

Thus, the equation in standard form would be:

x - y = 0

7 0
3 years ago
Name the second largest of the four angles
Vika [28.1K]

Answer:

Step-by-step explanation:

Even without a picture, it is fairly easy to know which ones is the second largest angles.

1) Angle measurements are given: In this case, if the angle measurement is given, then you can directly compare. The second largest angle is your answer.

2) Sides are given (usually in the form of triangles). The angle that has the largest measurement is directly opposite of the hypotenuse, with the second one being directly opposite of the second to largest side.

7 0
3 years ago
What is the standard form of (x + 1 + i)(x + 1 − i)
lbvjy [14]

Answer:

hope it helps

Step-by-step explanation:

please mark me as brainliest thank you

5 0
3 years ago
Whats the common denominator of 3/4 and 5/6​
Alja [10]

Answer:

60 Hope this helps you :)

Step-by-step explanation:

3 0
3 years ago
The top 1/8 of the runners advance to the finals for the track and field competition. What is the decimal value of the number? S
egoroff_w [7]
To find the decimal form, you have to manually divide 1 by 8. Since 8 is greater than 1, the quotient would then start with 0., then you add a 0 next to 1, to make it 10. This time, divide 10 by 8. The nearest answer would be 1, because 1 *8 = 8. Subtracting this from 10, you get 2. Add another 0 to 2, to make it 20. Do the cycle all over again. The complete solution is as follows:
          0.125
       ---------------------------
   8 |   10
         - 8
        ------------------------
           20
         -16
          -------------
            40
          - 40
       -------------
            0

<em>Hence, the decimal form of 1/8 is 0.125.</em>
8 0
3 years ago
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