Answer:
Step-by-step explanation:
To find the values of the angle which makes maximum r you use the derivative of r

If you equals this derivative to zero you obtain the value of the angle:

However, the values of 5π/6 and 9π/6 are also available, because makes the sinusoidal function equal to 1.
hence, the answer is:

answer b
Answer:
$16.50
Step-by-step explanation:
The base price of the service is $9 and each song he downloaded is $0.50 so in turn you'd have to multiply 15(because he downloaded 15 songs) by $0.50 which would give you $7.50. then you'd add $9 and $7.50 to get $16.50
Answer:
144
Step-by-step explanation:
100% of 300 is 300
50% of 300 is 150
2% of 100 = 2 which means that 2% of 300 = 6
150+6 = 156
300-156 = 144
The answer is A should be right
Answer:
I think D is right, because usually congruent angles have the same angle measure, and there's no answer choice for 1 and 3.