Answer:
No
Step-by-step explanation:
Not every parallelogram is a rhombus, though any parallelogram with perpendicular diagonals is a rhombus
Answer: 
Step-by-step explanation:
Do you mean
? In that case just finish things inside the bracket first then multiply 2 inside.

Then multiply 2 inside the bracket.

Move 54 to other side then we get,




(Note: If this is not what you mean then please let me know.)
Answer:
f(x)=1550-15x
Step-by-step explanation:
x is the amount of days and f(x) is the total after x amount of days. PLEASE MARK BRAINLIEST
X^2 = 50
Square both sides
x= √50
x= (√25)(√2)
x = 5√2
Final answer: x = 5√2 and since x is to the power of 2 you can have x = + or - <span>x = 5√2</span>