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Naddika [18.5K]
3 years ago
6

URGENT!! 100 POINTS, BRAINLIEST AS WELL

Mathematics
2 answers:
Olenka [21]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Notice that there is a little triangle formed by the lines on the right side of the diagram.

Let's find the angle measures of the triangle. One of them has a supplementary angle of 96 degrees, which means that the actual interior angle is 180 - 96 = 84 degrees.

Another angle has a supplementary angle of 137, which means that the actual interior angle of the triangle is 180 - 137 = 43 degrees.

Finally, we have the expression 2x - 23, which is an exterior angle. By definition, this exterior angle is equal to the sum of the interior angles of the triangle that do not include its supplementary angle. In other words:

2x - 23 = 84 + 43

Now we just solve for x:

2x - 23 = 84 + 43 = 127

2x = 127 + 23 = 150

x = 150/2 = 75 degrees

The answer is 75 degrees, or C.

lorasvet [3.4K]3 years ago
7 0

Answer:

C. x = 75

Step-by-step explanation:

The Supplementary angle of 2x-23 corresponds to 53, hence they're equal

Therefore,

2x - 23 + 53 = 180

2x + 30 = 180

2x = 150

x = 75°

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This is algebra 1 id appreciate it if you could help me thx!
Mnenie [13.5K]

Answer:

Option 4)  y - 1 = -2(x - 0)

Step-by-step explanation:

Given the slope, m = -2, and the y-intercept, (0, 1):

Substitute these values into the following point-slope form:

y - y1 = m(x - x1)

y - 1 = -2(x - 0)  ← This is the point-slope form given the slope, m = -2, and the y-intercept, (0, 1).

Therefore, the correct answer is Option 4: y - 1 = -2(x - 0)

7 0
3 years ago
What is the circumference of a circle with a radius of 14 inches?
slavikrds [6]

Answer:

C≈87.96in

Step-by-step explanation:

i took a test

7 0
4 years ago
Read 2 more answers
10 points all wrong answers will be reported and explain Solve using linear combinations show your work.
allochka39001 [22]

Answer:

x = -5, y = 4, z = 3

Step-by-step explanation:

(1)   3x +   y  + 3z = -2

(2) 6x + 2y + 9z =  5

(3) -2x -    y  -   z =  3

Step 1. Eliminate one of the variables in two of the equations

6x + 2y + 9z =  5     Subtract twice Equation (1)

6x + 2y + 6z = -4     from Equation (2)

               3z =  9

                 z =  3

Step 2. Set up two new equations in two variables

3x + y  + 9 = -2       Substitute z

-2x - y   - 3 =   3      into (1) and (3)

(4)   3x +  y  = -11      Add Equations  

(5) -2x  -  y  =   6     (4) and (5)

      x          =  -5

Step 3. Substitute x and z into one of the original equations

Substitute into (3)

-2(-5) - y - 3 =  3

  10   - y - 3 =  3

    7  - y       =  3

        - y       = -4

          y       =   4  

The solutions are x = -5, y = 4, z = 3.

Check:

(1) 3(-5) + 4 + 3(3) = -2

    -15    + 4 +  9   = -2

                      -2   = -2

(2) 6(-5) + 2(4) + 9(3) = 5

     -30   +   8   + 27   = 5

                             5   = 5

(3) -2(-5) - 4 - 3 = 3

       10    - 4 - 3 = 3

                      3 = 3

3 0
4 years ago
What is the value of X in the equation 8X - 2y=48,when y=4
Travka [436]

Answer:

X=7

Step-by-step explanation:

8x-2y=48

8x-2(4)=48

8x-8=48

8(7)-8=48

56-8=48

3 0
3 years ago
Read 2 more answers
Find ∠1 and ∠2. Justify your answer.
eduard

Answer:61 degrees

Step-by-step explanation:

Its congruent angles

4 0
3 years ago
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