Answer:
The fourth term of the sequence B(4) =-8
The sequence is 1,-2,4,-8...
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given that the sequence
B(n) = 1(-2)ⁿ⁻¹
Put n=1
B(1) = 1(-2)¹⁻¹ = 2⁰ =1
Put n=2
B(2) = 1(-2)²⁻¹ = (-2)¹ =-2
Put n=3
B(3) =1(-2)³⁻¹ = (-2)² =4
Put n=4
B(4) = 1(-2)⁴⁻¹ =(-2)³ =-8
The sequence
1,-2,4,-8...
Answer:
24 ft sq.
Step-by-step explanation:
formula for area of triangle is: bh/2
8(6)/2 = area
48/2 = area
24 = area
![\overline{y}](https://tex.z-dn.net/?f=%5Coverline%7By%7D%20)
(prounounced "y bar") is the mean of the y values
Add up the y values to get
5+7+10+15+18 = 55
Then divide by 5 (because there are five y values) to get
55/5 = 11
Therefore,
![\overline{y} = 11](https://tex.z-dn.net/?f=%5Coverline%7By%7D%20%3D%2011)
The answer is choice C