Answer:
B) Slope of PQ = Slope of RS = 3: Slope of PS = Slope of QR = − 1/3
Step-by-step explanation:
slope PQ =3 and -1/3 is the slope of its perpendicular line
Well the simplest power of 15^8 is 3^15 and the simplest form if 15^3 is 15^15
Both Rhianna and Christopher were correct as they took different reference angles.
Step-by-step explanation:
Step 1:

The value of the tan of a reference angle is calculated using the above formula.
The hypotenuse is the longest side of the triangle is always opposite the right angle of the triangle.
In this triangle, the hypotenuse is the side measuring 5 units.
Step 2:
When the reference angle is A, the opposite side measures 3 units and the adjacent side measures 4 units.
So 
When the reference angle is C, the opposite side measures 4 units and the adjacent side measures 3 units.
So 
So both Rhianna and Christopher were right as they took different reference angles i.e. A and C.
Answer:

And we can find the intercept like this:


And the equation would be given by:

Step-by-step explanation:
For this case we want a function given by:

Where C is the cost, m the slope, w the weight and b the intercept.
We have the following info (w=5, C= 694.55) and (w=8, C=1098.56) and we can find the slope with this formula:

And we can find the intercept like this:


And the equation would be given by:

Answer:
I think its A
Step-by-step explanation: