The answer to this question is choice B. To complete the square, we take the coefficient on the x term, halve it, and then square it. This results in -9/2, and then 81/4. This value of 81/4 is added to both sides, allowing for factorization of the lefthand side of the equation.
Answer:A
Step-by-step explanation:
Given

Turning Point is the point where the graph changes its nature i.e. either increasing to decreasing or decreasing to increasing
to find turning point

For critical point
F'(x)=0

x+2=0
x=-2

thus
(-2,-4 ) is the turning Point where Function changes its nature
D) 2.1+2x=7.5
All the sides added together will equal the perimeter
Answer:
P = 499.2 Watt
Step-by-step explanation:

Answer:
83°
Step-by-step explanation:
Since angle x and angle y are supplementary angles,
x + y = 180°.
Since y = 97°
x = 180° - y = 180° - 97° = 83°