Answer:
5
Step-by-step explanation:
x1 x1 x1 5 x6 x7 x9
Answer:
Step-by-step explanation:
18. x + 25 = 55
x = 30
19. 2x - 5 = 95
2x = 100
x = 50
20. 3x - 22 = 2x + 26
x - 22 = 26
x = 48
21. 3x - 18 + 105 = 180
3x + 87 = 180
3x = 93
x = 31
22. 19x + 17x = 180
36x = 180
x = 5
27(5) = 135
23. 5x + 40 + 2x = 180
7x + 40 = 140
7x = 140
x = 20
5(20) = 100
2(20) = 40
5(20) + 40 = 100 + 40 = 140
The given function can also be written in the
form:
f (x) = 15 (1 + 1)^x
Where this equation is similar to the general
growth rate equation:
f (x) = k (1 + i)^n
Where,
i = percent rate of growth
n = number of years
Since we want to set that n = x/2, therefore we
need to find the new i. We can do this by equating the two:
<span>(1 + i)^x/2 = (2)^x</span>
Multiplying the exponents of both sides by 1/x:
(1 + i)^1/2 = 2
1 + i = 4
i = 3
Therefore the new equation is:
f (x) = 15 (4)^(x/2)
or
<span>f (x) = 15 (2^2)^(x/2) (ANSWER)</span>
<span> </span>
Answer:
False
Step-by-step explanation: