Answer:
45-12=33
Step-by-step explanation:
you subtract 45 by 12 and get 33
Answer:
- geometric sequence with initial value 20 and common ratio 1/2
- average rate of change on [1, 3] = -7.5
Step-by-step explanation:
(a) The given points have sequential values of x and values of y that are each 1/2 the value before. The common ratio tells us the sequence is a geometric sequence.
(b) The first given point is (2, 10), so extrapolating backward, we determine the previous point to be ...
... (2-1, 10/(1/2)) = (1, 20)
Thus, we have enough information to determine the average slope between n=1 and n=3.
... (difference in y)/(difference in n) = (5 -20)/(3 -1) = -15/2 = -7.5
Step-by-step explanation:
A'B'/AB = 5.1/1.7 = 3
B'C'/BC = 7.2/2.4 = 3
A'C'/AC = 7.5/2.5 = 3
These ratios are equal to the scale factor. These ratios are the scale factor.
Answer:
a. 202.5 m³
Step-by-step explanation:
Volume = a² × h/3
Where a is the side length and h is the height
Answer:
a ) n = 1667
b) n= 5192
c) n=1500
Step-by-step explanation:
c= 95%
Expected value = E.v= 300 , 170 , 100
R = 35000-10000=25000
σ = R / 4 = 25000 / 4 = 6250
For sample size
b = ( zα/2 / 2σ / E )^2
where 1-α = 0.95 and
zα/2 = 1.96
then putting values one by one of E we get
E.v = 300
n= 1667
E.v = 170
n=5192
E.v =100
n= 1500
so for
a ) n = 1667
b) n= 5192
c) n=1500