Step-by-step explanation:
P=Rs4000
Rate(R)=15%
Time(T)=5years
Here,
SI=PTR/100
= 4000×15×5÷100
= Rs3000
"h and k cannot both equal zero" -- yes, it can. if the vertex of a parabola is at (0, 0), there's nothing incorrect/invalid about that!!
"k and c have the same value" -- k and c do not have the same value. "k" is the y-value of the vertex and c is the constant in your quadratic equation, and the constant is not necessarily the y-value.
"the value of a remains the same" -- this is true. the a's in your equations are the same values, because the a-value is the coefficient of the x-variable in both equations. y = a(x - h)^2 and y = ax^2 -- both of these have a applying to your x-variables.
"h is equal to one half -b" -- this isn't true. the formula for calculating the x value of the vertex (h is the x-value of the vertex) is h = (-b/2a). -b/2a is not the same as one half -b because this answer choice doesn't involve the a-value.
-.12 to both sides
49.46+.2x = 55.96
-49.46 to both sides
.2x = 6.5
Divide by .2 on both sides
X= 32.5
