Answer:
1) difference of squares, then its factors are (x+4)(x+2)
2) 3 (x+4)/2 (x-4)(x+4)
3/2 (x-4)
3) 3x+11/5x-9
Answer: 2343
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". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol. See: Variable.
Step-by-step explanation:
Answer:
I'm pretty sure it is 0.4
Step-by-step explanation:
I really hope this helps
Answer:
The equation is p=34a+12, and a=7
Step-by-step explanation:
Perimeter is all of the sides added together
p=12a+6a+8+6a+8+10a-4
Combine like-terms
p=34a+12
Solve for a by making p equal to 250
250=34a+12
Subtract 12 from both sides
238=34a
Divide both sides by 34
7=a
