For 12 years that a grocery store has been open. Its annual revenue (in million pesos) can be modeled by the function R=0.0001(-t4+12t3-77+2 +600t +13,650)
when t is the number of years the store is open. In which year was the revenue 1.5 million?
A. 4th and 5th
B. 3rd and 6th
C. 3rd and 9th
D. 11th and 12th

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value