Answer:
<h2>u = 0</h2>
Step-by-step explanation:

Using proportions, it is found that the value of x is of x = 5, hence option A is correct.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
Since the triangles are similar, the lengths are proportional. Researching the problem on the internet, we have that the proportions are given as follows:
- A side with a length of x is proportional to a side with length 25.
- A side with a length of 3 is proportional to a side with length 15.
Hence:

Simplifying the denominators:
x = 5.
More can be learned about proportions at brainly.com/question/24372153
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1) given
2) combine the -2-9 and get -11
3) add x to each side
4) add 11 to each side
5) divide 3 on each side
6) you get x=12 as the answer
Answer:
one solution the solution being ×=7/2
Step-by-step explanation:
one solution
Answer:
Denote O as center of circle, draw OA, OC.
As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):
=> AOC + D = 180
Moreover, angle AOC = 2 x angle B = 2 x 65 = 130
=> D = 180 - 130 = 50 deg
Hope this helps!
:)