Answer:
area of B or another side tell fast I will answer
(x+8)(x-6)= 0
x^2-48+8x-6x=0
x^2-48+2x=0
x+8=0 x-6=0
x= -8 x=6
The answer is -8 and 6, I did the process in case you need it
Samantha can find the total of the vases then add that and the sales tax. Once she has added those numbers up, she should subtract that from the total cost of the items. Once Samantha has subtracted, she should divide the answer by 4 to get the cost of an individual bag of beads
Step-by-step explanation:
7-3cosx=9sin²x
[sin²x=1-cos²x]
=>
7-3cosx=9-9cos²x
=>
9cos²x-3cosx-2=0
=>
let cosx=t
9t²-3t-2
by quadratic formula,
t=(3±9)/2·9
=> t=2/3 or t=-1/3
thus,
x=acos(2/3) or x=π- acos(1/3)