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AleksAgata [21]
4 years ago
5

What is the missing step in this proof?

Mathematics
2 answers:
Valentin [98]4 years ago
6 0
The answer is the third choice..
Statement: Angle 1 and angle 4 are congruent, and angle 3 and angle 5 are congruent.
Reason: Alternate Interior Angles Theorem

Hope this helps!
Anestetic [448]4 years ago
5 0

Answer:

(C)

Step-by-step explanation:

Given: The ΔABC.

To prove: the sum of interior angles measures of ΔABC is 180°.

Proof:

Statement                                                            Reason

1. Let points A, B and C form a triangle             given

2. Let DE be a line passing       Defining a parallel line and labeling angles

through B and parallel to AC

with angles as labelled.

3. ∠1≅∠4 and ∠3≅∠5                Alternate interior angles theorem

4. m∠1=m∠4 and m∠3=m∠5    Congruent angles have equal measures

5.m∠4+m∠2+m∠5=180°         Angle addition and definition of straight line

6.m∠1+m∠2+m∠3=180°            Substitution

Hence proved

hence, option C is correct

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The height h of a thrown object as a function of horizontal distance d that it has traveled is a quadratic function. An object i
omeli [17]

Answer:

  h(d) = (17/3249)(-d² +114d)

Step-by-step explanation:

For this purpose, it is convenient to translate and scale a quadratic parent function so it has the desired characteristics. We can start with the function ...

  f(x) = 1 -x² . . . . . . . has zeros at x = ±1 and a vertex at (0, 1)

We want to horizontally expand this function by a factor of 57, so we can replace x by x/57. We want to vertically scale it by a factor of 17, so the vertex is at (0, 17). Finally, we want to translate the function 57 m to the right, which requires replacing x with x-57. After these transformations, we have ...

  f(x) = 17(1 -((x-57)/57)²) = (17/3249)(-x²+114x)

Using the appropriate function name and variable, we have ...

  h(d) = (17/3249)(-d² +114d)

5 0
4 years ago
Graph the equation 3x+4y=36,
FrozenT [24]

Answer:

y=3/4x-9

Step-by-step explanation:

isolate the y

4y=3x-36

divide by 4 to get y by itself

y=3/4x-9

put this equation into a graphing calculator if you do not know how to graph on your own without it. good luck

7 0
3 years ago
List all the transformations that are rigid motions.
chubhunter [2.5K]

A rigid motion is any motion that doesn't deform the original shape - it's a motion that preserves the lengths and angles of a shape without stretching, squishing, or bending anything. The best way to think about rigid motions is to imagine holding something solid in your hand, like a smartphone. How can you move it around? You can <em>rotate</em> it around in your hand, changing its orientation; you can move your hand around through space, changing the smartphone's position. While it may not seem like a motion, you can also hold it up to a mirror, <em>reflecting </em>it in some way. These three transformations, rotation, translation (shifting position), and reflection, are the three primary rigid motions.

6 0
4 years ago
Read 2 more answers
True or false ? The polynomial below is a perfect square trinomial of the form A2-2AB+B2 4x2-16x+16
Vlad1618 [11]
True

4x^2 -16x +16 = (2x -4)^2

A = 2x
B = 4
3 0
4 years ago
The sides of an equilateral triangle are 8 units long. What is the length of the altitude of the triangle?
beks73 [17]

Answer:

Option B.

Step-by-step explanation:

It is given that the sides of an equilateral triangle are 8 units long.

Draw an altitude of the triangle.

Altitude of an equilateral triangle is perpendicular bisector.

Let x be the length of the altitude of the triangle.

According to the Pythagoras theorem

hypotenuse^2=base^2+perpendicular^2

Using Pythagoras theorem we get

8^2=4^2+x^2

64=16+x^2

64-16=x^2

48=x^2

Taking square root on both sides.

\sqrt{48}=x

4\sqrt{3}=x

The length of the altitude of the triangle is 4√3 units.

Therefore, the correct option is B.

8 0
3 years ago
Read 2 more answers
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