25/100 x 250
= $62.50 is 25% of $250
250 - 62.50
= $187.50
Therefore, the marked down price is $187.50
Answer:
<u>Step-by-step explanation:</u>
9x² + 4 = 0
<u> -4 </u> <u>-4 </u>
9x² = -4
x² =
Simplify your regular answer then you'll get it.
Answer: why does it say 5 points then?
Step-by-step explanation:
this is a really bad thing to do and its easy to tell your lying
Differentiate with respect to x and y
2x +10 y y' = 0
get y' alone
y' = -2x/(10 y)
reduce
y'=-x/(5y)
continue with quotient rule of differentiation
y'' = ( 5y(-1) - (-x) (5y')) / (5y) squared
y'' = (-5y + 5xy') / (25y squared)
reduce by dividing each term by 5
y" = (-y +xy') / (5y squared) answer
Now if the teacher wants you to continue so no y or y' shows
substitute y' = -x/(5y) and y = square root ((5-x squared) / 5)
and simplify