6x -18 = 3x + 9
3x = 9 + 18
X = (9+18) divided by 3
Answer:
(c) The t-distribution is bell shaped
(e) The t-distribution has more values at the extremes than a standard normal distribution
(f) The t-distribution is centered at 0
Step-by-step explanation:
When the sample size is small or population variance is unknown, and we have to estimate population parameter then t- probability distribution is used.
The t-distribution has properties as follows:
- The mean of t-distribution is 0. Thus, option (f) is correct.
- t-distribution is normal. Thus, option (c) is correct.
- As compare to standard normal distribution, t-distribution has more values at the extremes. Thus, option (e) is correct.
Base×Height = Area
So put (2x-6)(x+3) which equals
2x^2+6x-6x-18
Combine like terms=
2x^3-18
Simplify by diving each term by 2 since both terms have factors of 2.
Final Answer = x^2-9
You’ll have to use pythagoras theorem = a^2+b^2=c^2
15^2 = 225
9^2 = 81
225 - 81 = 144
Square root of 144 is 12
Therefore a = 12m
Answer:
82,950
Step-by-step explanation:
The number of printers sold is modeled by the function:
The price per printer is modeled by 
,where t is the number of years since 2003.
From 2009 to 2003, we have t=6 years.
The number of printers sold is 
The price per printer is 
,
The revenue generated is a number of printers times unit price.
