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". In x + 2 = 7, x is a variable, but we can work out its value if we try!
Step-by-step explanation:
-8 -8 = -16
You add -8 to -8
Answer:
C
Step-by-step explanation:
congruence means duplicate so you have to see its reflection
Answer:40
Step-by-step explanation:
2300/57=40.35
40 shelves will be completely full of books.
The angle is a complementary angle so both angles add up to 90 degrees
Therefore set your equation equal to 90 to find angle of x
53+x=90
Subtract 53 from both sides
X= 37 degrees
