Answer:
A $60.50
Step-by-step explanation:
165 divided 3 = $55.00 per class
55.00 X 10% = 5.50 per class
55.00 + 5.50 = 60.50
Answer:
4
Step-by-step explanation:
Given that 


Now,


This can be written as
[as
]

[ by using equation (i)]
=4
Hence, 
850000000 /<span>340000 = 2,500 times</span>
Answer:
it would be 60 degrees
Step-by-step explanation: Every 5 minutes on a clock there is a big number, and there are 12 of those. 360/12 is 30 degrees, so every hour, the hour hand moves 30 degrees.
Answer:
The minimum y-value is
or 
Step-by-step explanation:
we have

This is the equation of a vertical parabola open up
The vertex is the minimum y-value on the graph
Convert the equation into vertex form
Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares

------> equation in vertex form
The vertex is the point (-0.5,-7.75)
therefore
The minimum is the point (-0.5,-7.75)
The minimum y-value is 
see the attached figure to better understand the problem