Answer: f(1 - x) = 2x + 1
<u>Step-by-step explanation:</u>
f(x) = 2x + 3
f(1 - x) = 2(1 - x) + 3 <em>replaced x with 1 - x</em>
= 2 - 2x + 3 <em>distributed the 2</em>
= 5 - 2x <em>simplified</em>
Answer:
What's the problem?
Step-by-step explanation:
Makes NO sense
4. 120° ~ vertical angles are congruent
5. 13° ~ vertical angles are congruent
6. 70° ~ supplementary angles
7. 115° ~ supplementary angles
Answer:

Step-by-step explanation:
The given figure shows a triangular pyramid having 16 units as height. The base of pyramid is triangle.
The area of a triangular pyramid is given by :

Where
b is the area of base

So, the required area is equal to
.
1/2r+2(3/4r-1)=1/4r+6
2r-2=1/4r+6
2r=1/4r+8
7/4r=8
7r=32
r=32/7