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denis-greek [22]
3 years ago
13

What is -2 + 7x = 12

Mathematics
1 answer:
8090 [49]3 years ago
5 0

Answer:

easy the answer is

Step-by-step explanation:

-2 + 7x = 12

+2 +2

7x + 14

14 / 7x = 2

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Please help!!
erastova [34]

Answer:

  180, 180, 148, 180, 148

Step-by-step explanation:

The two rules in play here are ...

  • the sum of interior angles of a triangle is 180°
  • the angles of a linear pair are supplementary (they total 180°)

__

The first of these rules answers the first two questions:

  • interior angles total 180°
  • angles 1, 3, 4 total 180°

We can subtract the measure of angle 1 from both sides of the previous equation to find the sum of the remaining two angles.

  • angles 3 and 4 total 148°

The second rule answers the next question:

  • angles 1 and 2 total 180°

As before, subtracting the value of angle 1 from both sides of the equation gives ...

  • angle 2 must be 148°

_____

<em>Additional comment</em>

Of course, the subtraction property of equality comes into play, also. For some unknown, X, you have (in both cases) ...

  X + 32° = 180°

  X +32° -32° = 180° -32° . . . . . . subtraction property of equality

  X = 148° . . . . . . . . simplify

In the first case, X is the sum of angles 3 and 4. In the second case, X is angle 2 only.

7 0
3 years ago
What is the vertex of the graph of f(x) = |x + 3| + 7? (3, 7) (7, 3) (–3, 7) (7, –3)
ArbitrLikvidat [17]

Answer:

(-3,7)

Step-by-step explanation:

7 0
4 years ago
Can someone please help
Gala2k [10]

Answer:

\sqrt{160}

Step-by-step explanation:

Te equation of line is:

y = 3x + 12

Plug x = 0 in the above equation of line, we find:

y = 3*0 + 12

y = 0 + 12

y = 12

y-intercept = (0, 12)

Plug y = 0 in the equation y = 3x + 12

0 = 3x + 12

-3x = 12

x = 12/(-3)

x = - 4

x-intercept = (-4, 0)

Distance between x-intercept and y--intercept

=  \sqrt{ {( - 4 - 0)}^{2} +  {(0 - 12)}^{2}  }  \\  \\  =  \sqrt{ {( - 4 )}^{2} +  {(- 12)}^{2}  }  \\  \\  =  \sqrt{16 + 144}  \\  \\  =  \sqrt{160}

8 0
3 years ago
What is the <br> Perimeter:<br> Area:
Margaret [11]

Answer:

136 is the area

Step-by-step explanation:

if you multiply 17 times the number of sides which is 8 you would get 136 for the perimeter does it give an other numbers?

4 0
3 years ago
Help please ! due in 5 minutes!
klemol [59]

Answer:

1. 11/400

2. 16/15

3. 101/12

4. 2/15

1. 12/7

2. 72/11

3. 10/9

Step-by-step explanation:

1. 11/400

2. 16/15

3. 101/12

4. 2/15

1. 12/7

2. 72/11

3. 10/9

4 0
3 years ago
Read 2 more answers
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