YX=2, I assume you need to get the 'X' and 'Y' alone. Also just for future reference, you're trying to get variables alone and all the numbers on the other side. Lastly, whatever you do to one side you do to the other. Good luck!
The answer is A
A. The pre-image will be congruent to the image.
Answer:
He answered 20 questions correctly.
Step-by-step explanation:
25×.8(80%) = 20.
Tan 32=9/x
x=14.4
cos29=x/7
x=6.12
The range refers to the value of y for which x is define.
So let y=f(x),

Try making x the subject to obtain,

x is defined for all real values of y greater than
0.
Hence the correct answer is D.