Answer: 1) B is correct, constant of variation is -2.
Step-by-step explanation:
1)
Direct variation states that a relationship between the two variables. we say y varies directly as x
i.e, or y =kx.................[1] ; where k is the constant of variation.
Given the equation:
Divide both sides by -4 we get;
Simplify:
.......[2]
On comparing equation [2] with [1] we get;
k = -2
Answer:
17.0604
Step-by-step explanation:
I recommend to round to 17. Hope this helped!
Answer:
The required equation in standard form is 
Step-by-step explanation:
The equation of a circle with center (h,k) an radius, r units is given by the formula;
The given circle has center (4,5) and the radius can be calculated from the given circumference, which is 
We substitute these values into the formula to obtain;
We simplify to get;
Answer:
6
Step-by-step explanation:
The shape is a hexagon so it will have 6 angles :)
