Answer:
y = 96 * (1/2)ˣ or
y = (-96)*(-1/2)ˣ
Step-by-step explanation:
y=a(b)ˣ
pass (1 , 48): 48 = a * b¹ ab = 48 ...(1)
pass (3 , 12): 12 = a * b³ ab³ = 12 ...(2)
(2)/(1): ab³/ab = b² = 12/48 = 1/4
b = 1/2 or b = - 1/2
a = 96 or a = -96
Answer:
The answer will be -12 because you are multiplying 2x and -6
Answer:
It would be D
Step-by-step explanation:
If you do the problem backward and apply the discount and taxes to 20$, then you get 18.70
Answer:
height of the tower = 2358.3 feet
Step-by-step explanation:
To solve this question, we can use the tangent relation of the angle of elevation, where the opposite side of the angle is the height of the tower minus six feet and the adjacent side of the angle is the distance from David to the tower. So, we have that:
tangent(78) = (height - 6)/500
4.7046 = (height - 6) / 500
height - 6 = 2352.3
height = 2358.3 feet
Answer:
£465.50
Step-by-step explanation:
Divide the bottom: 665 / 100 = 66.5
66.5 x 30 = 1995
Divide by a hundred
199.5
665 - 199.5 = £465.50
