Cos 180 = -1
sin 180 = 0
So you put in the answer that when you revert it into complex again, it would be -4.
The correct answer would be 4(cos 270 + i sin 270)
No becuase Javier has to drive 3 hours. 40 times 3=120
Answer:
+C
Step-by-step explanation:
we are to find the integral of 
dx.
we will integrate by using the principle of integration of a sum or difference of two functions by integrating them separately.
∫x/25-9x^2 dx = 
+C
= 
+C
Let y be the total money earned in a day and x be the pairs of shoes sold.
y = 4.5x + 40
Putting y = 112
112 = 4.5x + 40
x = 16 pairs of shoes must be sold to meet the requirement.
Answer:
$212.50
Step-by-step explanation:
So you have to multiply 8.5 by 25 because for every hour she gets $25. And if she works for 8.5 hours then you multiply both numbers to get your answer.
Hope this helps!
