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tino4ka555 [31]
2 years ago
13

Parallel lines r and s are cut by two transversals, parallel lines t and u. How many angles are alternate interior angles with a

ngle 9?
Mathematics
2 answers:
Ganezh [65]2 years ago
6 0

Answer:

2

Step-by-step explanation:

Serhud [2]2 years ago
5 0

Answer:

3

Step-by-step explanation:

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X^2+x=12 solve by quadratic formula
krok68 [10]

Answer:

x= 3, -4

Step-by-step explanation:

6 0
3 years ago
Which equation represents the graphed function?
nadezda [96]

9514 1404 393

Answer:

  y = 1/4x -2

Step-by-step explanation:

The line rises one unit from -2 to -1 as x changes from 0 to 4. The slope is ...

  m = rise/run = 1/4

The y-intercept (b) is where the line crosses the y-axis, at y = -2.

The equation in slope-intercept form is ...

  y = mx + b

  y = 1/4x -2

8 0
3 years ago
How do i solve this equation?​
Luden [163]

Answer:

x = 28

Step-by-step explanation:

(3x + 6^o) = 90^o

3x = 84^o

x = 28

7 0
3 years ago
Someone please help . I have so much work due to wifi problems
quester [9]

Answer:

1. 24

2. 4

3. 22

4. 14

5. 15

6. 70

7. 0

8. 33

9. 19

Step-by-step explanation:

4 0
3 years ago
Graph f(x) =-2x^+16x-30 by factoring to find the solutions, then find the coordinates of the vertex, and the axis of symmetry. I
fredd [130]

Answer:

<em>Observe attached image</em>

<em>Function zeros:</em>

(3, 0), (5, 0)

<em>Vertex:</em>

(4, 2)

<em>Axis of symmetry:</em>

<em>x =4</em>

Step-by-step explanation:

<u>First factorize the function</u>

f (x) = -2x ^ 2 + 16x-30

<em>Take -2 as a common factor.</em>

-2(x ^ 2 -8x +15)

<em>Now factor the expression x ^ 2 -8x +15</em>

You must find two numbers that when you add them, obtain the result -8 and multiplying those numbers results in 15.

These numbers are -5 and -3

Then we can factor the expression in the following way:

f (x) = -2(x-5)(x-3)

<em><u>The quadratic function cuts the x-axis at </u></em><em>x = 3 and at x = 5.</em>

Now we find the coordinates of the vertex.

For a function of the form ax ^ 2 + bx + c the x coordinate of its vertex is:

x = \frac{-b}{2a}

In the function f (x) = -2x ^ 2 + 16x-30

a = -2\\b = 16\\c = 30

<u>Then the vertice is:</u>

x = \frac{-16}{2(-2)}\\\\x = 4

The y coordinate of the symmetry axis is

y = f (4) = -2 (4) ^ 2 +16 (4) -30\\\\y = 2

The axis of symmetry is a vertical line that cuts the parabola in two equal halves. This axis of symmetry always passes through the vertex.

<u>Then the axis of symmetry is the line</u>

x = 4

<u>The solutions and the vertice written as ordered pairs are:</u>

<em>Function zeros:</em>

(3, 0), (5, 0)

<em>Vertex:</em>

(4, 2)

6 0
3 years ago
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