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AleksAgata [21]
3 years ago
5

What is the missing step in this proof?

Mathematics
2 answers:
Valentin [98]3 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]3 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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If g(x) is the inverse of f(x), what is the value of f(g(2))?
Elan Coil [88]

Answer:

2

Step-by-step explanation:

So to figure this out we just need to flip the values of x and y in the table and then redefine that as the function g(x), because an inverse is essentially the reverse!

So if we flipped x and y's for f(x). We would see that our output or y of g(x) is -3 when x = 2, or in other words g(2) = -3. This means that we are now going to solve for when f(-3). So now lets look at the table and find the value at x = -3 for f(x). This value is 2, so the value of f(g(2)) = 2.

*In the future*

When you have a composite function of two inverses they essentially cancel out and would leave whatever the value of x is. So if we know f(x) and g(x) were inverses the value of f(g(2)) would just be 2.

For example:

ln(x) and e^x are inverses so if I had a composition like this:

e^{ln(2)}

The answer to this would be 2 because these inverse functions "'cancel" out

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8 0
3 years ago
Read 2 more answers
Please help help please
Burka [1]
(fog)(x)= f(g(x))=f(2)= 2
4 0
2 years ago
Please help me! <br> Will give brainlst :)
eduard

Answer:

the answer

Step-by-step explanation:

and solution are

above

7 0
3 years ago
Jackson ran 5/7 of the distance around the school track Sarah around 4/5 of Jackson's distance what fraction of the total distan
Ilia_Sergeevich [38]

Answer:

2/3 of the track

Step-by-step explanation:

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3 0
3 years ago
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Answer:

1.)    13\frac{3}{10}\\

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Step-by-step explanation:

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