\[\sum_{n=1}^{7} 2(-2)^{n-1}\]
Answer:
B) -4
Step-by-step explanation:
m= (0 - (-4)) / (2 - 0) = 4 / 2 = 2
f(2) = 2 * 2 + b = 0
f(0) = 2 * 0 + b = -4
b = -4
Frequency describes the number of waves that pass a fixed place in a given amount of time.
Let x rep cost of dvd in $
so the cost of tv is 3x
and x + 3x = 1132
4x=1132
x=1132/4
x= 283 and 3x=3(283)=849
