3. is SAS
4. is CPCTC
5. i think its 66
Answer:
y – 2 = 4x
3y = –9x – 6
Step-by-step explanation:
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known.
It is called a "variable" or sometimes an "unknown".
But in some cases, x can be equal to 1 like example when working with exponents.
Step-by-step explanation:
Answer:
129
Step-by-step explanation:
the 2 angles together will equal 180 because that is half of a circle a circle is 360so what you do is subtract 180 minus 51 and get 129
Answer: 16cm
Step-by-step explanation:
The radius is half of the diameter so you would have to double the radius.