Let x = number of weeks.
815 - 35x ≥ 150.
Subtract 815 from each side
-35x ≥ -665
Divide each side by -35
x ≤ 19
He can withdraw $35 every week for at most 19 weeks.
50 * 5280 / 60 = 4400 ft/min
Answer:
perimeter=(lengths+breadth)×2
in this case its a square with 9 cm length
9+9×2
18×2
36 its ez
Answer:
see explanation
Step-by-step explanation:
Using the identity
tan x = 
Consider the left side
= 
( multiply numerator and denominator by cos²x to clear fractions
= 
← ( cos²x + sin²x = 1 ]
= cos²x - sin²x
= right side , thus proven
