Answer:
A carousel rotates uniformly, making one complete rotation every 4.0 seconds
Answer:
The answer is C
Step-by-step explanation:
Look at the graph the dot is not shaded so its definitely not the one with less than or equal to or greater than or equal to.. Its only one and the line points backwards so it's C
Answer:
The system has two distinct solutions.
Step-by-step explanation:
The given system of equations are:

and

In order to determine the number of solutions the two equations have, we need to equate the two equations to obtain,

We now group all terms on the left hand side and equate everything to zero.


This is now a quadratic equation in
with
.
At this stage we check the number of solutions using the discriminant.


Since the discriminant is greater than zero, the equation will have two distinct roots.
Therefore the system of equations has exactly two distinct solutions.
If you wish to see these solutions, you can continue as follows;
We factor
to obtain,



When 
Then we have,

When 
Then we have,

See graph
1/2 ab Sin C
1/2 (15) (9) Sin (110)
63.429...
(rounded = <em><u>6</u></em><em><u>3</u></em><em><u>.</u></em><em><u>4</u></em><em><u> </u></em><em><u>f</u></em><em><u>t</u></em><em><u>^</u></em><em><u>2</u></em><em><u>)</u></em>